Answer:
I think its letter A
Step-by-step explanation:
hoped it helped
Part C
The computer club is purchasing 14 portfolios, 14 binders, 14 school
sweatshirts, 14 music cases, 14 phone cases, and 14 mouse pads. The club
will pay for 40% of the cost. The 14 members are equally responsible for the
rest of the cost. All items are taxable. How much will each member owe?
Let's calculate the total cost of all the items purchased by the computer club:
Cost of 14 portfolios = 14 * $24.59
Cost of 14 binders = 14 * $12.92
Cost of 14 school sweatshirts = 14 * $14.00
Cost of 14 music cases = 14 * $1.25
Cost of 14 phone cases = 14 * $1.99
Cost of 14 mouse pads = 14 * $2.14
Total cost of all items = Cost of 14 portfolios + Cost of 14 binders + Cost of 14 school sweatshirts + Cost of 14 music cases + Cost of 14 phone cases + Cost of 14 mouse pads
Plugging in the given values:
Total cost of all items = (14 * $24.59) + (14 * $12.92) + (14 * $14.00) + (14 * $1.25) + (14 * $1.99) + (14 * $2.14)
Now, the computer club will pay for 40% of the total cost. To calculate this, we can multiply the total cost by 40% (or 0.40):
Club's payment = 0.40 * Total cost of all items
The remaining cost will be divided equally among the 14 members:
Remaining cost per member = (Total cost of all items - Club's payment) / 14
Plugging in the values and calculating:
Club's payment = 0.40 * ((14 * $24.59) + (14 * $12.92) + (14 * $14.00) + (14 * $1.25) + (14 * $1.99) + (14 * $2.14))
Remaining cost per member = ((14 * $24.59) + (14 * $12.92) + (14 * $14.00) + (14 * $1.25) + (14 * $1.99) + (14 * $2.14) - Club's payment) / 14
So, each member of the computer club will owe the calculated value for "Remaining cost per member".
Hope this is good
A newspaper in Germany reported that the more semesters needed to complete an academic program at the university, the greater the starting salary in the first year of a job. The report was based on a study that used a random sample of 24 people who had recently completed an academic program. Information was collected on the number of semesters each person in the sample needed to complete the program and the starting salary, in thousands of euros, for the first year of a job. The data are shown in the scatterplot below. 70 65 60 55 Starting Salary (1.000 euros) 50 45 35 30 25 5 10 15 20 Number of Semesters (a) Does the scatterplot support the newspaper report about number of semesters and starting salary? Justify your answer. b) The coefficient of determination is 0.335. Interpret this value in the context of this problem. c) Determine the value of the correlation coefficient. Interpret this value in the context of this problem.
a) Yes, It does. The scatterplot support the newspaper report about number of semesters and starting salary.
b) The value is relatively low, indicating that there are other factors that also contribute to starting salary.
c) The correlation coefficient is a value between -1 and 1 that measures the strength and direction of the linear association between two variables.
The Correlation Coefficienta) The scatterplot appears to show a positive association between the number of semesters needed to complete an academic program and the starting salary in the first year of a job. As the number of semesters increases, the starting salary generally increases as well. Therefore, the scatterplot supports the newspaper report.
b) The coefficient of determination, or R-squared value, represents the proportion of the variation in the dependent variable (starting salary) that is explained by the independent variable (number of semesters). A value of 0.335 means that 33.5% of the variation in starting salary is explained by the number of semesters. This value is relatively low, indicating that there are other factors that also contribute to starting salary.
c) The correlation coefficient is a value between -1 and 1 that measures the strength and direction of the linear association between two variables. A value of 1 indicates a perfect positive correlation, a value of -1 indicates a perfect negative correlation, and a value of 0 indicates no correlation. The correlation coefficient for this data is not provided in the problem, so it is not possible to determine it. Without the correlation coefficient, it is not possible to interpret the strength and direction of the association between number of semesters and starting salary.
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Can someone please help me I need the ones that are ticked
Answer:
*Note: Perimeter is equal to the sum of all side lengths
1. 3cm + 3cm + 5cm + 4cm = 6cm + 9cm = 15cm
2. 3.5cm + 3cm + 3.5cm + 3.5cm + 3cm + 3.5cm
= 6cm + 7cm + 7cm = 6cm + 14cm = 20cm
3. 2cm + 3cm + 3cm + 3cm + 5cm + 6cm = 5cm + 6cm + 11cm
= 11cm + 11cm = 22cm
7. 9cm + 9cm + 9cm = 27cm
8. Perimeter of a rectangle = 2 times the length plus 2 times the width
P = 2(60m) + 2(48m) = 120m + 96m = 216m
9. 1 roll of 16m of wire = $3,214
216m/16m = 13.5 rolls of wire
13.5 rolls($3,214) = $43,389
A bouncy ball is dropped such that the height of its first bounce is 4.5 feet and each successive bounce is 73% of the previous bounce's height. What would be the height of the 10th bounce of the ball? Round to the nearest tenth (if necessary).
The height of the 10th bounce of the ball will be 0.6 feet.
What is geometric sequence?A geometric sequence is a sequence in which each term is found by multiplying the preceding term by the same value.
What is the formula for finding the nth term of geometric sequence?The nth term of the geometric sequence is given by
\(\sf T_n=ar^{n-1}\)
Where,
\(\sf T_n\) is the nth term.r is the common ratioa is the first termAccording to the given question.
During the first bounce, height of the ball from the ground, a = 4.5 feet
And, the each successive bounce is 73% of the previous bounce's height.
So,
During the second bounce, the height of ball from the ground
\(\sf = 73\% \ of \ 10\)
\(=\dfrac{73}{100}(10)\)
\(\sf = 0.73 \times 10\)
\(\sf = 7.3 \ feet\)
During the third bounce, the height of ball from the ground
\(\sf = 73\% \ of \ 7.3\)
\(=\dfrac{73}{100}(7.3)\)
\(\sf = 5.33 \ feet\)
Like this we will obtain a geometric sequence 7.3, 5.33, 3.11, 2.23,...
And the common ratio of the geometric sequence is 0.73
Therefore,
The sixth term of the geometric sequence is given by
\(\sf T_{10}=10(0.73)^{10-1\)
\(\sf T_{10}=10(0.73)^{9\)
\(\sf T_{10}=10(0.059)\)
\(\sf T_{10}=0.59\thickapprox0.6 \ feet\)
Hence, the height of the 10th bounce of the ball will be 0.6 feet.
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The table shows the area of two rugs a preschool teacher has in her room. She places the two rugs together to make one big rug. What is the area in square units of the new rug in factored form?
Given:
The area of the blue rug is:
\(8(x+\frac{1}{2})\)And the area of the red rug is :
\(10(x+\frac{2}{5})\)So, the area of both of them is the sum of the given areas:
So, the total area =
\(\begin{gathered} 8(x+\frac{1}{2})+10(x+\frac{2}{5}) \\ =8x+8\cdot\frac{1}{2}+10x+10\cdot\frac{2}{5} \\ =8x+4+10x+4 \\ =18x+8 \\ =2(9x+4) \end{gathered}\)so, the area of the new rug in factored form = 2 ( 9x + 4 )
I need help plz can you please help
Answer:
The answer should be -156-61i
Name various type of transpiration in tobacco, rose , edible pea and rice
Different plants, such as tobacco, rose, edible pea, and rice, exhibit various types of transpiration, including stomatal transpiration, cuticular transpiration, and lenticular transpiration.
Transpiration is the process through which plants lose water vapor from their surfaces, primarily through specialized structures called stomata. However, the specific types of transpiration can vary among different plant species.
In tobacco plants, transpiration occurs through stomatal transpiration. Stomata are small openings on the surface of leaves that regulate gas exchange and water loss. The majority of water vapor is released through these stomata in tobacco plants.
Similarly, in rose plants, transpiration primarily takes place through stomatal transpiration. The stomata on rose leaves open and close to control the rate of water loss, allowing the plant to conserve water during periods of high evaporation.
In edible pea plants, transpiration occurs through both stomatal transpiration and cuticular transpiration. Stomatal transpiration happens through the stomata on pea leaves, while cuticular transpiration occurs through the cuticle, a waxy layer covering the epidermis of leaves and stems.
In rice plants, which are typically grown in wet or submerged conditions, transpiration happens through lenticular transpiration. Lenticels are small openings on the stems and roots of plants that facilitate gas exchange and water vapor release.
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Find an angle in each quadrant with a common reference angle with 259', fromа0°50<360°
Given:
There is an angle with a measure of 259°
We will find an angle in each quadrant with a common reference angle with 259° from 0 < θ < 360
The reference angle will be:
\(259-180=79\)Quadrant I : 79°
Quadrant II:
\(180-79=101\)Quadrant III: 259°
Quadrant IV:
\(360-79=281\degree\)in preparation, you identify all possible outcomes and the probability of each outcome. which approach to negotiation are you using? game theory individual differences cognitive approach situational characteristics
By identifying all possible outcomes and the probability of each outcome the negotiation used here is Game theory.
The study of mathematical models of strategic interactions between rational beings is known as game theory and it has uses in computer science, logic, systems science, and all branches of social science.
The most well-known application of game theory is The Prisoner's Dilemma for instance take two offenders who were detained following an arrest as an example. The prosecution lacks concrete proof to prove their guilt. Officials, however, take the inmates out of their isolation cells and question each one separately in order to extract a confession.
The area of mathematics known as "game theory" is concerned with the analysis of such games. Classical game theory and combinatorial game theory are the two primary subfields of game theory. Traditional game theory examines games where participants can move, wager, or strategize all at once.
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D Test 3 Math 151 1. (15 points) Find a power series representation for 1 - 2 f(x) = (2 – x)2 - To receive a full credit, show all your work. a
The power series representation for 1 - 2f(x) = (2 - x)^2 is found by expanding the expression into a series. The resulting power series provides a way to approximate the function for certain values of x.
To find the power series representation for the given function, we start by expanding the expression (2 - x)^2 using binomial expansion. The binomial expansion of (a - b)^2 is given by a^2 - 2ab + b^2. Applying this formula to our expression, we have (2 - x)^2 = 2^2 - 2(2)(x) + x^2 = 4 - 4x + x^2.
Now, we can rewrite the given function as 1 - 2f(x) = 1 - 2(4 - 4x + x^2) = 1 - 8 + 8x - 2x^2. Simplifying further, we get -7 + 8x - 2x^2.
To express this as a power series, we need to identify the pattern and coefficients of the powers of x. We observe that the coefficients alternate between -7, 8, and -2, and the powers of x increase by 1 each time starting from x^0.
Thus, the power series representation for 1 - 2f(x) = (2 - x)^2 is given by -7 + 8x - 2x^2.
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Which line has a slope of -1/3?
A.
B.
C.
D.
E. None of these
b) If the joint probability distribution of three discrete random variables X, Y, and Z is given by, f(x, y, z)=. (x+y)z 63 for x = 1,2; y=1,2,3; z = 1,2 find P(X=2, Y + Z ≤3).
The probability P(X=2, Y+Z ≤ 3) is 13. Random variables are variables in probability theory that represent the outcomes of a random experiment or event.
To find the probability P(X=2, Y+Z ≤ 3), we need to sum up the joint probabilities of all possible combinations of X=2, Y, and Z that satisfy the condition Y+Z ≤ 3.
Step 1: List all the possible combinations of X=2, Y, and Z that satisfy Y+Z ≤ 3:
X=2, Y=1, Z=1
X=2, Y=1, Z=2
X=2, Y=2, Z=1
Step 2: Calculate the joint probability for each combination:
For X=2, Y=1, Z=1:
f(2, 1, 1) = (2+1) * 1 = 3
For X=2, Y=1, Z=2:
f(2, 1, 2) = (2+1) * 2 = 6
For X=2, Y=2, Z=1:
f(2, 2, 1) = (2+2) * 1 = 4
Step 3: Sum up the joint probabilities:
P(X=2, Y+Z ≤ 3) = f(2, 1, 1) + f(2, 1, 2) + f(2, 2, 1) = 3 + 6 + 4 = 13
They assign numerical values to the possible outcomes of an experiment, allowing us to analyze and quantify the probabilities associated with different outcomes.
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Experiment 1: Determine if mean oral condition measurement after 6 weeks (TOTALCW6) is different based on treatment group (TRT). TRT > TOTALCW6 6. What statistical test should you use in Experiment l? a. Independent two sample t-test b. ANOVA c. Chi-Square Test of Independence d. Linear Regression 7.
In Experiment 1, we need to determine if the mean oral condition measurement after 6 weeks (TOTALCW6) is different based on the treatment group (TRT).
To analyze this data, we need to use a statistical test that can compare the means of two or more groups. One possible option is the independent two sample t-test, which can compare the means of two groups. However, since there are multiple treatment groups in this experiment, a better option would be ANOVA (Analysis of Variance). ANOVA can compare the means of three or more groups, making it a suitable choice for our analysis. ANOVA can also test whether the means of different groups are significantly different from each other or not. Thus, we can conclude that ANOVA is the appropriate statistical test to use in Experiment 1.
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Write a situation to represent this inequality:
72 - 12a < 24
Answer:
The length of a poster is 72 less than 12 times the width, if it adds up to less than 24, you must find the width.
Write a linear equation from the graph.
Need help, will be giving points
Answer:
189 in³------------------------------
Volume equation of the pyramid:
V = 1/3 a²h, where a- side of the base, h - height f the pyramidSubstitute values a = 9 in, h = 7 in:
V = 9²*7/3 = 189 in³Answer:
Volume of pyramid = 189 in³
Step-by-step explanation:
Now we have to,
→ find the volume of the pyramid.
Formula we use,
→ Volume = (1/3)a² × h
Then the volume of pyramid is,
→ (1/3)a² × h
→ (1/3) × (9)² × 7
→ (1/3) × 81 × 7
→ (81/3) × 7
→ 27 × 7
→ 189 in³
Hence, the volume is 189 in³.
Simplify the expression by using a Double-Angle Formula or a Half-Angle Formula. (a) 2 sin(16°) cos(16) Remember to use a degree symbol. (b) 2 sin(40) cos(40) Solve the given equation. (Enter your answers as a comma-separated list. Let k be any integer. Round terms to two decimal places where appropriate.) tan(0) --
Using Double-Angle Formulas, 2 sin(16°) cos(16°)= sin(32°), 2 sin(40°) cos(40°) = sin(80°)., tan(0) = 0.
To simplify the expressions using Double-Angle Formulas and solve the equation.
(a) 2 sin(16°) cos(16°)
Using the Double-Angle Formula for sine: sin(2x) = 2sin(x)cos(x), we can rewrite the expression as:
sin(2 * 16°) = sin(32°)
So, the simplified expression is sin(32°).
(b) 2 sin(40°) cos(40°)
Using the same Double-Angle Formula for sine: sin(2x) = 2sin(x)cos(x), we can rewrite the expression as:
sin(2 * 40°) = sin(80°)
So, the simplified expression is sin(80°).
Now, let's solve the given equation:
tan(0) = 0
There is no need to provide a comma-separated list of answers because tan(0) is always equal to 0.
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Add.
(4+4n)+(7+2a)
Thanks!
Answer:
\((4+4n)+(7+2a) = 11+4n+2a\)
Step-by-step explanation:
For the function f(x) = 0.25 (x - 1) (x + 7) identify the vertex.
Answer:
Mark brainly then I will answer..
Find the s score for each test grade. A grade of 45 on a test for which x bar =40 and s=4
The s score for a grade of 45 on this test is 62.5. To find the z score for a grade of 45 on a test with a mean of 40 and a standard deviation of 4, we can use the formula:
z = (x - mu) / sigma
where x is the value we want to find the z score for (in this case, x = 45), mu is the mean (mu = 40), and sigma is the standard deviation (sigma = 4).
Plugging in these values, we get:
z = (45 - 40) / 4 = 1.25
So the z score for a grade of 45 on this test is 1.25.
It's important to note that the z score tells us how many standard deviations away from the mean a particular value is. In this case, a grade of 45 is 1.25 standard deviations above the mean.
However, the question asks for the s score, not the z score. The s score is simply the raw score (in this case, 45) adjusted to have a mean of 50 and a standard deviation of 10. To find the s score, we can use the formula:
s = (x - mu) / sigma * 10 + 50
Plugging in the values we know, we get:
s = (45 - 40) / 4 * 10 + 50 = 62.5
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5. Find the value x. (3pts.)
6x - 18
3x + 18
someone help
Answer:
x=12
Step-by-step explanation:
6x - 18 = 3x + 18
6x = 3x + 36
3x = 36
x=12
Answer:
its 12
Step-by-step explanation:
cody was 165 cm 165cm165, start text, c, m, end text tall on the first day of school this year, which was 10 % 10, percent taller than he was on the first day of school last year. how tall was cody on the first day of school last year? cm cm
If Cody was 10 %, percent taller than he was on the first day of school last year then he was 150 cm tall on the first day of school last year.
To find out the height of Cody on the first day of school last year, we need to perform a calculation as follows:
Let's say their height of Cody on the first day of school last year is 'x'.
His height of Cody on the first day of school this year is 165 cm.
Cody is 10% taller than he was on the first day of school last year, so:
165 = x + (10% of x)
Simplifying this equation will give
165 = x + 0.1 x 165
= 1.1xx
= 150
Therefore, Cody was 150 cm tall on the first day of school last year.
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Subr Solving Linear Inequalities: Mastery Test Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bar(s). Mr. Schwartz builds toy cars. He begins the week with a supply of 85 wheels, and uses 4 wheels for each car he builds. Mr. Schwartz plans to order more wheels once he has fewer than 40 wheels left. The inequality that can be used to find the number of cars, x, Mr. Schwartz builds before he places an order for more wheels is X
Answer:
Step-by-step explanation:
Mr. Schwartz begins with total number of wheels = 85
he has to order more wheels once he left with less than 40 wheels
so min. no. of wheels he can use before ordering more wheels = 85-40 = 45
Mr. Schwartz uses 4 wheels to build 1 car
Mr. Schwartz uses 45 wheels to build 45÷4 = 11.25 cars
then, if he builds 12 cars then he needs 12×4 = 48 wheels
total supply of wheels he begins with = 85
wheels he used to build 12 cars = 48
so total number of wheels remaining are = 85-48 = 37
since 37 is less than 40 so after building 12 cars Mr. Schwartz need to order more wheels.
Linear inequality that is used to find number of cars before Mr. Schwartz places an order for more wheels is equals to 4x ≥ 45.
What is linear inequality?
"Linear inequality is defined as a expression where we compare two different linear expression with the help of sign of inequality."
According to the question,
Number of supply wheels =85
Number of wheels required for each car = 4
Mr. Schwartz has to order more wheels when,
Number of wheels < 40
x represents number of cars
As per conditions given ,
Inequality used to find number of cars before placing order for more wheels is 80 -40= 45
Therefore, required linear inequality is
4x ≥ 45
Hence, required linear inequality is 4x ≥ 45.
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a 97% confidence interval for a population parameter means that if a large number of confidence intervals were constructed from repeated samples, then on average, 97% of these intervals would contain the true parameter. a) true b) false
The given statement is true. A 97% confidence interval for a population parameter means that if a large number of confidence intervals were constructed from repeated samples, then on average, 97% of these intervals would contain the true parameter.
A 97% confidence interval is a range of values that you can be 97% certain contains the true mean of the population. This is not the same as a range that contains 97% of the values.
It means that repeated samples of the same sample size will produce confidence intervals such that 97% of the intervals will contain the true but unknown parameter prior to drawing the sample. This is called the initial precision of the confidence interval.
Confidence intervals:
Confidence interval computes the range in which the true value lies with a specified confidence level and is generally denoted by a small c.
Therefore we get that a 97% confidence interval for a population parameter means that if a large number of confidence intervals were constructed from repeated samples, then on average, 97% of these intervals would contain the true parameter.
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Use the image to determine the direction and angle of rotation.
90° counterclockwise rotation
180° clockwise rotation
270° clockwise rotation
270° counterclockwise rotation
The rotation rule used in this problem is given as follows:
270° counterclockwise rotation.
What are the rotation rules?The five more known rotation rules are given as follows:
90° clockwise rotation: (x,y) -> (y,-x)90° counterclockwise rotation: (x,y) -> (-y,x)180° clockwise and counterclockwise rotation: (x, y) -> (-x,-y)270° clockwise rotation: (x,y) -> (-y,x)270° counterclockwise rotation: (x,y) -> (y,-x).Two equivalent coordinates for this problem are given as follows:
A(1, 5) and A'(5, -1).
Hence the rule is:
(x, y) -> (y, -x).
Which is the rule for a 270º counterclockwise rotation.
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2. If you pay a one-time fee of $30, you can
buy tickets for a music concert at a
reduced price of $17. Regular tickets cost
$25. Write an inequality that can be used
to determine the number of reduced price
concert tickets you would need to
purchase in order for the total cost to be
less expensive than the same number of
regular tickets.
2.
3
Answer:
Kindly check explanation
Step-by-step explanation:
Given that :
One time fee = $30
Reduced price of ticket after one time fee payment = $17
Regular ticket cost = $25
Write an inequality that can be used to determine the number of reduced price concert tickets you would need to purchase in order for the total cost to be less expensive than the same number of regular tickets
Let the number of tickets needed to purchase = t
Reduced ticket = 30 + 17t
Regular ticket = 25t
30 + 17t < 25t
30 < 25t - 17t
30 < 8t
30/8 < 8t/8
3.75 < t
t > 3.75
Hence number of ticket must be greater than 3.75
t = 4
A right rectangular prism is packed with cubes of side length fraction 1 over 5 inch. If the prism is packed with 15 cubes along the length, 6 cubes along the width, and 5 cubes along the height, what is the volume of the prism?
Answer:
3.6 in³
Step-by-step explanation:
If each cube is 1/5 inch:
15 cubes along the length = 15÷5 = 3 inches
5 cubes along the height = 5÷5 = 1 inch
6 cubes along the width = 6÷5 = 1.2 inches (1 and 1/5)
V=lwh=3*1*1.2= 3.6 in³
What is the rate of change of the following equation?
y = x - 4
Answer:
-4
Step-by-step explanation:
a flypool cast a shadow that is 20 ft long at the same time a child who is 4 ft tall cash a shadow that is 42 in long how tall is the flagpole to the nearest foot
Answer:
To answer this question, we need to use the ratio between the shadow length and the object's height. In the first example, the flypool casts a shadow 20 ft long and the child casts a shadow 42 in long. This means that the ratio between the flypool's shadow and the child's shadow is 20 ft:42 in or 5:1.
Now, to calculate the height of the flagpole, we need to use the same ratio. For example, if the flagpole casts a shadow 120 in long, then the ratio between the flagpole's shadow and the child's shadow is 120 in:42 in or 3:1. Thus, the height of the flagpole is 3 times the height of the child, or 12 ft. To the nearest foot, this would be 12 ft
what level of confidence would you need to have so that the value of the true population mean of training time was between 49.01 and 53.99 days?
1) Option B, which states that the confidence interval size shrank from 0.99 to 0.90, is the right answer.
2) Option D is the best decision. Confidence interval: 0.88
1) Confidence intervals are ranges of estimates for unknown parameters in frequentist statistics. Confidence intervals are given a confidence level. The most common level is 95%, but other levels, such as 90% or 99%, may be used as well.
Therefore, option B is the correct choice, which states that the confidence interval size decreased from 0.99 to 0.90
2) Probability is another word for confidence in statistics. An estimate that falls between the upper and lower values of a confidence interval, such as one constructed with a 95% level of confidence, is 95 out of 100 times likely to be accurate.
It can be calculated as:
df=n-1=19
t critical value 0.12 (two tail) = 1.62797
M = 51.5
sM = √(6.842 / 20) = 1.53
μ = M ± Z (sM)
μ = 51.5 ± 1.62797 * 1.53
μ = 51.5 ± 2.49
therefore, CI { 49.01 and 53.99 }
The correct choice is option D. 0.88 confidence interval.
Question:
. move the slider all the way to the right to a confidence coefficient of 0.99. now move the slider to a confidence coefficient of 0.90. what happened to the size of the confidence interval during the move from 0.99 to 0.90? from 0.99 to 0.90 the confidence interval size became larger from 0.99 to 0.90 the confidence interval size became smaller from 0.99 to 0.90 the confidence interval size remained constant -select- 2. what level of confidence would you need have so that the value of the true population mean of training time was between 49.01 and 53.99 days? 0.93 0.97 0.85 0.88
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