The confidence interval for the proportion of adults who identify chocolate pie as their favorite pie, with a confidence level of 98%, is approximately 0.3248 to 0.8152 (rounded to four decimal places).
To calculate the confidence interval for the proportion of adults who identify chocolate pie as their favorite pie, we can use the formula:
Confidence Interval = Sample Proportion ± Margin of Error
First, let's calculate the sample proportion:Sample Proportion = Percentage/100 = 57/100 = 0.57
Next, we need to calculate the margin of error using the formula:Margin of Error = Critical Value * Standard Error
Since the confidence level is 98%, the alpha level (α) is 1 - 0.98 = 0.02. Since it is a two-tailed test, we divide the alpha level by 2, resulting in α/2 = 0.01.
The critical value can be found using a standard normal distribution table or a calculator, based on the alpha level. In this case, the critical value for a 98% confidence level is approximately 2.33.
The standard error is calculated as the square root of [(Sample Proportion * (1 - Sample Proportion)) / Sample Size].
Standard Error = sqrt[(0.57 * (1 - 0.57)) / 22]
Now we can calculate the margin of error: Margin of Error = 2.33 * sqrt[(0.57 * (1 - 0.57)) / 22]
Finally, we can calculate the confidence interval:Confidence Interval = Sample Proportion ± Margin of Error. Substituting the values: Confidence Interval = 0.57 ± Margin of Error
Therefore, the confidence interval for the proportion of adults who identify chocolate pie as their favorite pie, with a confidence level of 98%, is approximately 0.3248 to 0.8152 (rounded to four decimal places).
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I really need the answer
Answer:
232
Step-by-step explanation:
all u gotta do here is plug in 40 here so:
0.145(40)x^2
0.145(1600)
f(x)= 232
Find the volume of the triangular prism
Answer:
12
Step-by-step explanation:
Me ajudem
1- a) 5 ( x – 1) = 30
b) 3 (x + 10 ) – 2 ( x – 5 ) = 0
Answer:
a)7, b)-40
Step-by-step explanation:
a) 5(x-1)=30
=>5x -5=30
=>5x=30+5
=>5x=35
=>x=35/5
so, x=7
b)3(x+10)-2(x-5)=0
=>3x+30-2x+10=0
=>x+40=0
so,x=-40
n + 4 > -9
How do I figure out how to graph this?? I learned this in first period today, and I remember NOTHING!! HELP PLEASE!!!
Answer:
n>-13
Step-by-step explanation:
so you subtract 4 from -9 then since your not multiplying or divinding by a negative you don't flip the sign
Answer:
n>-13
Step-by-step explanation:
✌️❤️✌️
..........
23. Match the figure with the number of unit cubes that would be needed to build each figure. Not every number of unit cubes will be used.
We can see here that:
Figure 1 - 7 unit cubes.Figure 2 - 6 unit cubes.What is cube?A cube is a three-dimensional geometric shape that has six square faces, all of which are congruent (equal in size) and perpendicular to each other. It is a special type of rectangular prism where all edges have the same length, and all angles are right angles (90 degrees).
Cubes are commonly encountered in everyday life, such as dice, boxes, and Rubik's Cube puzzles. They have precise and uniform geometry, making them useful in various mathematical and engineering applications.
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Determine the correct classification for each number or expression.
The numbers in this problem are classified as follows:
π/3 -> Irrational.Square root of 54 -> Irrational.5 x (-0.3) -> Rational.4.3(3 repeating) + 7 -> Rational.What are rational and irrational numbers?Rational numbers are defined as numbers that can be represented by a ratio of two integers, which is in fact a fraction, and examples are numbers that have no decimal parts, or numbers in which the decimal parts are terminating or repeating. Examples are integers, fractions and mixed numbers.Irrational numbers are defined as numbers that cannot be represented by a ratio of two integers, meaning that they cannot be represented by fractions. They are non-terminating and non-repeating decimals, such as non-exact square roots.More can be learned about rational and irrational numbers at brainly.com/question/5186493
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What is the sum of all the angles that are labeled?
Image of three angles around a single vertex. One angle is fifty five degrees, one is sixty four degrees, and one is one hundred seventy five degrees.
The sum of all the angles that are labeled in the given vertex is 294°
In a single vertex, the three angles around the vertex are given as 55°, 64°, and 175°
We have to find the sum of all the angles that are labeled in the given single vertex.
What is a vertex?A vertex is a point two or more lines meets.
It is the corner of a geometrical shape.
Example:
A square has 4 corners so it has 4 vertexes.
A cube has 8 corners so it has 8 vertexes.
We will add all the different angles in the single vertex as shown in the figure below.
Let,
Angle A = 55°
Angle B = 64°
Angle C = 175°
The sum of all the angles that are labeled is:
= Angle A + Angle B + Angle C
= 55° + 64° + 175°
= 294°
The sum of all the angles that are labeled in the given vertex is 294°
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Can Somebody help me real fast?
Answer:
X = 63
Step-by-step explanation:
whaats the answer i dont get it
Note that the measure of angle ACB for circle centered at point O is 18°.
Why is this?
A circle is a closed curved shape consisting of all points in a plane that are equidistant from a fixed center point.
∠AOB = 2 * ∠ACB (angle at center is twice the angle at circumference)
36 = 2 * ∠ACB
∠ACB = 81°
The measure of angle ACB for circle centered at point O is 18°
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Got an rented a truck for one day. There was a base fee of $20.95, and there was an additional charge of 76 cents for each mile driven. Goes. Had to pay $216.27 when he returned the truck. For how many miles did he drive the truck?
Solution
\(\begin{gathered} 20.96+0.76m=216.27 \\ \\ \Rightarrow0.76m=216.27-20.96 \\ \\ \Rightarrow m=\frac{195.31}{0.76}=257\text{ miles} \end{gathered}\)Which expressions have the same solution as –4(6)? Select three options..
The expressions that have the same solution with -4(6) are -1(24), - 2( 12) and -3(8)
What are equivalent expressions?Equivalent expressions are expressions that work the same even though they look different. If two algebraic expressions are equivalent, then the two expressions have the same value when we plug in the same value(s) for the variable(s).
The value of -4(6) is -24, to find the equivalent, we find other factors of 24, which are 1, 2, 3 , 8,12 and 24
therefore -1 × 24 = -24
-2 × 12 = -24
-3 × 8 = -24
therefore other equivalents of -4(6) are;
-2(12) , -1(24) and -3(8)
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Jack took Diane out to dinner to celebrate her birthday. The total bill for the dinner was $62.80. Jack wants to tip the waiter exactly 15%. How much will Jack tip the waiter?
The amount of the tip that Jack gave to the waiter will be $9.42.
What is the percentage?The amount of any product is given as though it was a proportion of a hundred. The ratio can be expressed as a quarter of 100. The phrase % translates for one hundred percent. It is symbolized by the character '%'.
The percentage is given as,
Percentage (P) = [Final value - Initial value] / Initial value x 100
Jack took Diane out to supper to praise her birthday. The all out bill for the supper was $62.80. Jack needs to tip the server precisely 15%.
The amount of the tip will be given as,
⇒ 15% of $62.8
⇒ 0.15 x $62.8
⇒ $9.42
The amount of the tip that Jack gave to the waiter will be $9.42.
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A school dedicated 20% of the courtyard area for students to start a garden. The students
want to know how much of the 060-square-foot space they will be able to use.
) Which expression shows a way to find 20% of 9501
950
4 050
950
oso
20
Il
Answer:
1/5 * 950
It is the third option.
WILL GIVE BRAINLIEST
How would the mean change if the number 4 were added to the set?
3, 3, 2, 2, 2, 8, 8, 4
Question 4 options:
decrease
increase
no change
Answer:
No Change
Step-by-step explanation:
If you add all of the numbers, you get 32. When you divide it by how many numbers there were, you get 4. When you add 4 to 32, you get 36 and since you added one more number, you need to divide 36 by 9, which still makes 4.
Eddie and Janice are buying school supplies. Eddie buys 5 notebooks and 6 binders for a total of $25.45. Janice buys 4 notebooks and 8 binders for $30.60. What is the cost of each item?
Answer:
Notebook $1.25
Binder $3.20
Step-by-step explanation:
5n + 6b = 25.45
4n + 8b = 30.6
Multiply the first equation by -4.
Multiply the second equation by 5.
Add the equations.
-20n - 24b = -101.8
20n + 40b = 153
16b = 51.2
b = 3.2
5n + 6(3.2) = 25.45
5n + 19.2 = 25.45
5n = 6.25
n = 1.25
Answer:
Notebook $1.25
Binder $3.20
X and Y are independent random variables, and a and b are constants. Which one of the following statements is true?
X and Y are independent random variables, and a and b are constants is
Var(X-Y) = Var(X) + Var(Y)
Now, According to the question:
Let's Know:
Independent random variable:
Two random variables X and Y are independent if
E(XY) = E(X)E(Y).In case of n random variables the formula is extended as
\(E(X_1,X_2,X_3....X_n)=E(X_1)E(X_2)E(X_3)...E(X_n)\)
Are the random variables X and Y independent?
If X and Y are two random variables and the distribution of X is not influenced by the values taken by Y, and vice versa, the two random variables are said to be independent.
Hence, X and Y are independent random variables, and a and b are constants is
Var(X-Y) = Var(X) + Var(Y).
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Your parents give you $10,000. You place it in an account that pays 6.1% annual interest compounded continuously. How much will you have in 20 years? Round the answer to the nearest dollar.
Answer:
$22,200 over all
Step-by-step explanation:
The compound interest after 20 years is $22700.
What is compound interest?Compound interest is the interest you earn on interest. Compound interest is the interest calculated on the principal and the interest accumulated over the previous period.
For the given situation,
The principle, p = $10,000
Rate of interest, r = 6.1% = 0.061
Compounded continuously, n = 1
Number of years, T = 20
The amount formula of compound interest is
\(A=p(1+\frac{r}{n} )^{T}\)
On substituting the above values,
⇒ \(A=10000(1+\frac{0.061}{1} )^{20}\)
⇒ \(A=10000(1.061)^{20}\)
⇒ \(A=32681.9\) ≈ \(32682\)
The compound interest can be calculated as
\(CI=A-P\)
⇒ \(CI=32682-10000\)
⇒ \(CI=22682\) ≈ \(22700\)
Hence we can conclude that the compound interest after 20 years is $22700.
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Problem 1: Bob’s Citrus and Nursery sells cartons of citrus fruits. There are 24 oranges in each carton. They have 5,643 oranges to pack into cartons. How many cartons can they fill?
Problem 2: This year, 4,338 grapefruits have been harvested so far. Bob’s has 18 storage bins for grapefruits. If the grapefruits are distributed evenly among 18 bins, how many grapefruits are in each bin?
248 per bin.
The number of cartons that the oranges would fill in Bob’s Citrus and Nursery would be 235 cartons.
The number of grapefruits in each bin would be 241 grapefruits per bin.
How to find the number of cartons ?To find the number of cartons of oranges that would be filled, use the number of oranges that go into carton in Bob’s Citrus and Nursery and the number of oranges they have to pack. The formula would be:
= Number of oranges / Number of oranges per carton
= 5, 643 / 24
= 235 cartons
How to fin the number of grapefruits per bin ?The same logic is applied to find the number of grapefruits that would be in each bin. If each bin would have an equal number of grapefruits, the number of grapefruits per bin would be:
= Number of grapefruits / Number of bins
= 4, 338 / 18
= 241 grapefruits per bin
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Money and finances are considered "taboo" as topics of conversation. However, you have a friend who bragged about
having paid in over $5,500 to Social Security last year. Estimate how much money they earned!
The amount earned is $88,709.68
What is a social security tax?It is a payroll tax that is paid on wages earned by employees.
We have,
We will assume the current Social Security tax rate for employees as 6.2%.
Now,
The amount earned.
= 5,500 / 6.2%
= 5500 / 0.062
= $88,709.68
Thus,
The amount earned is $88,709.68
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Describe how the graph of the second function relates to the graph of the first function. y = |x| y = |x| − 3
Step-by-step explanation:
y=|x| is a vee graph starting at (0,0)
y=|x| - 3 is a vee graph starting (0,-3)
see attachment
PLS HELP FOR 20 POINTS PLEASE THIS IS HARD (i think 20 i dont know i set it to 20 but who knows im new to this) sorry for talking to yall like you know humans and not people on internet
Answer:
30 feet
Multiply
For every 1 mm on the map there are 200 miles of actual distance (third option)
8 cm, 26.8 cm, and 58 cm (last option)
Step-by-step explanation:
Question 1:
An airplane is 180 feet long. Blake makes a scale model of the airplane at 1:60 of its actual size how long is the model?
If the model is scaled down by 1/60, then the model is 60 times smaller than the actual airplane. Set the model size as "x" and so we can write this ratio.
1 / 60 = x / 180
Cross multiply (multiply 60 and x, and 180 and 1)
60x = 180
x = 3 feet
Question 2:
To produce an enlarged or reduced measure you ____ the scale.
In order to find the measure, you multiply it by the scale factor.
Question 3:
A scale on a map is 1 mm: 200 miles
The question tells us that for every 1 mm, there are actually 200 miles. So the answer is the first option, For every 1 mm on the map there are 200 miles of actual distance.
Question 4:
What are the new dimensions if we expand the triangle below by a factor of 4.
If we multiply by the scale factor, 4, we get
2 * 4 = 8
6.7 * 4 = 26.8
14.5 * 4 = 58
Thus, the answer is 8 cm, 26.8 cm, and 58 cm (last option)
I hope this helps! Feel free to ask any questions!
what is half of 30ml
Half of 30ml is 30ml divided by 2, this is:
\(\frac{30ml}{2}=15ml\)Half of 30ml is 15ml.
A rule for a sequence of numbers is given.
a1 = -12
An= An+ 5
an
What is the sixth term of this sequence?
A
-7
B.
8.
>
С
13
D
18
That is, what qualities does a taylor polynomial havethat the tangent line does not necessarily have?
The quality which a taylor polynomial have that the tangent line does not necessarily have is that Taylor polynomial has a far better approximation of f(x) near x = a than is the tangent line
What is Taylor polynomial ?Taylor polynomial function simply refers to an infinite sum of terms that are expressed in terms of the function's derivatives at a single point.
So therefore, the quality which a taylor polynomial have that the tangent line does not necessarily have is that Taylor polynomial has a far better approximation of f(x) near x = a than is the tangent line
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You bring 1.5 dozen bagels to school.
A dozen bagels cost $5.98.
You used a coupon that took $1.00 off the total.
How much did you pay for the bagels?
Answer: You would pay $7.97 for the bagels.
Step-by-step explanation:
(Price per Dozen * Amount) - Coupon = Price of Bagels
(5.98 * 1.5) - 1 = Price of Bagels
8.97 - 1 = Price of Bagels
Price of Bagels = $7.97
CAN SOMEONE HELP ME PLEASE I WILL MARK THE BRAINLIEST ANSWER
Answer:
B
Step-by-step explanation:
1. Differentiate the function f(x) = ln (81 sin^2 (x)) f’(x) 2. Differentiate the function P(t) = in ( √t2 + 9) p' (t) 3. if x2 + y2 + z2 = 9, dx/dt = B, and dy/dt = 4, find dz/dt when (x,y,z) = (2,2,1)
dz/dt =
First you will get 4dz
2. Quinn receives 48K per year as a store manager. His benefits include health insurance, paid holidays, retirement
contributions, paid vacation, and uniforms per year. He constructed the table to show the value of each benefit. What is
his annual salary, including benefits?
you
try!
Benefit
Health Insurance
Paid Holidays
Retirement Contributions
Paid Vacation
Uniform Supplied
Value
$10,200
$915
$5,200
$1,950
$3,000
please help 10 points
Answer:
B
Step-by-step explanation:
At least i think its b since i read this recently
The overhead reach distances of adult females are normally distributed with a mean of 197.5 cm and a standard deviation of 8 cm. a. Find the probability that an individual distance is greater than 210.90 cm. b. Find the probability that the mean for 20 randomly selected distances is greater than 196.20 cm. c. Why can the normal distribution be used in part (b), even though the sample size does not exceed 30?
a) The probability that an individual distance is greater than 210.90 cm is of: 0.047 = 4.7%.
b) The probability that the mean for 20 randomly selected distances is greater than 196.20 cm is of: 0.7673 = 76.73%.
c) The normal distribution can be used as the underlying distribution is normal.
How to obtain probabilities using the normal distribution?The z-score of a measure X of a variable that has mean symbolized by \(\mu\) and standard deviation symbolized by \(\sigma\) is obtained by the rule presented as follows:
\(Z = \frac{X - \mu}{\sigma}\)
By the Central Limit Theorem, the sampling distribution of sample means of size n has standard deviation \(s = \frac{\sigma}{\sqrt{n}}\).
The Central Limit Theorem can be applied when at least one of these conditions is true:
Underlying distribution is normal -> this problem.Sample size greater than 30.The mean and the standard deviation for this problem are given as follows:
\(\mu = 197.5, \sigma = 8\)
The probability that an individual distance is greater than 210.90 cm is one subtracted by the p-value of Z when X = 210.90, hence:
Z = (210.9 - 197.5)/8
Z = 1.675
Z = 1.675 has a p-value of 0.9530.
1 - 0.9530 = 0.047 = 4.7%.
For 20 distances, the standard error is of:
\(s = \frac{8}{\sqrt{20}} = 1.79\)
Hence the probability that the mean for 20 randomly selected distances is greater than 196.20 cm is one subtracted by the p-value of Z when X = 196.2, considering the standard error calculated as follows:
Z = (196.2 - 197.5)/1.79
Z = -0.73
Z = -0.73 has a p-value of 0.2327.
1 - 0.2327 = 0.7673 = 76.73%.
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