g you would like to obtain a 90% confidence interval with margin of error 0.02, what is the minimum sample size you need?
Answers
I would like to construct a 95% confidence interval with a 4% margin of error. We don't have an estimate for the percentage, so we use a conservative estimate.
This is the minimum sample size, so we need to round up to 601. The larger the sample, the more confident the responses truly represent the population.
This shows that for a given confidence level, the confidence interval gets smaller as the sample size increases. At least 1450 samples from each group are required.
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Related Questions
A small bag of chips weighs 48 grams. A large bag of chips weighs three times as much as the small bag. How many grams will 7 large bags of chips weigh?
Answers
Answer:
the answer is Bg=3(48g)=144g for each large bag.
Step-by-step explanation:
just copy and paste the question that you have into a google search bar and the answer will pop up...
Use the graph to answer the following question.
For which interval is the function increasing and changing by a constant
rate of change?
A. between 2 and 4
B. -2 and 0
C. between -4 and -2
D. between 0 and 2
Answers
We can conclude that in the interval -4 and 2, the function increasing and changing by a constant rate of change.
What is function?A function is a relation between a dependent and independent variable.
Mathematically, we can write → y = f(x) = ax + b.
Given is the graph of a function as shown in the image.
Between the interval -4 and 2, the function increasing and changing by a constant rate of change.
Therefore, we can conclude that in the interval -4 and 2, the function increasing and changing by a constant rate of change.
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Help! With steps pls
Solve for x
4(1.7)^(x)=7(1.08)^(x)
Answers
the solution to the equation \(4(1.7)^(x) = 7(1.08)^(x)\) is approximately
x = 8.732.
What are logarithms?The other technique to write exponents in mathematics is using logarithms. A number's base-based logarithm is equal to another number. A logarithm performs exponentiation's exact opposite function. For instance, log10 100 = 2 if 102 = 100.
from the question:
By separating the variable on one side of the equation and then taking the logarithm of both sides, we can find the value of x.
Starting with:
\(4(1.7)^(^x^) = 7(1.08)^(^x^)\)
Dividing both sides by \(7(1.08)^(x)\), we get:
\((4/7)(1.7)^(^x^) = (1.08)^(^x^)\)
Taking the logarithm of both sides (with any base), we get:
\(log[(4/7)(1.7)^(^x^)] = log[(1.08)^(^x^)]\)
Using the properties of logarithms, we can simplify this to:
log(4/7) + xlog(1.7) = xlog(1.08)
Subtracting x*log(1.7) from both sides, we get:
log(4/7) = xlog(1.08) - xlog(1.7)
Factoring out x, we get:
log(4/7) = x*[log(1.08) - log(1.7)]
Dividing both sides by [log(1.08) - log(1.7)], we get:
x = log(4/7) / [log(1.08) - log(1.7)]
We can evaluate this statement with a calculator and obtain:
x ≈ 8.732
As a result, x = 8.732 is about the answer to the equation 4(1.7)(x) = 7(1.08)(x).
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85 grams is approximately equivalent to 3 ounces. On average, Americans eat 200 grams of sugar per
day. About how many ounces is this?
A 2 ounces
B 3 ounces
C 6 ounces
D 7 ounces
Answers
Answer:
D. 7 ouncesStep-by-step explanation:
200 grams is equal to 7 ounces.
Answer:
D)7 ounces
Step-by-step explanation:
85grams is equal to 3ounces and 200 grams is equal to x.2. It is a proportio
\(\frac{85}{3} =\frac{200}{x}\) so,
3. x=200*3/85
4. x is approximately equal to 7 ounces
The table below represents a linear function
What is the slope of the function written as a decimal?
Answers
Answer:
LSD - Thunderclouds (Official Video) ft. Labrinth, Sia, Diplo
Step-by-step explanation:
Are all square roots irrational ?
A. True
B. False
Answers
Answer:
True
Step-by-step explanation:
All square roots of natural numbers, other than of perfect squares, are irrational.
please help 15 points
The numbers in this chart represent the number of minutes a group of five high school students spent talking on their cell phones one day.
Which of the following statements is true about this data?
A. The data set has two modes.
B. The data set has no mean.
C. The median is 41.
D. The mode and median are equal.
Answers
Answer:
It's probably C.
Step-by-step explanation:
41 is in the middle.
So technically speaking... It's the median?
It's definitely not A, that's for sure.
Edit: I was extremely wrong.
Which property was used to write the equation in step 2?
Answers
Answer:
It's the subtraction property of equality because you have to subtract.
Step-by-step explanation:
Given center C and a point P on a circle, find its equation. C(-2,7) and P (1,11)
A) (x-1)2+(y-11)2=5
B) (x+2)2+(y-7)2=5
C) (x-1)2+(y-11)2=25
D) (x+2)2+(y-7)2=25
Answers
Answer:
the only left one is the distance or radius so to find this find under square root (x2-x1)²+(y2-y1)² then you gate r=5,R²=25 so the correct answer is d
[Help Asap, Will Mark Brainliest] Question is in the image.
![[Help Asap, Will Mark Brainliest] Question is in the image.](https://i5t5.c14.e2-1.dev/h-images-qa/contents/attachments/7f0jcsj1yjVuKeCtkg5fD1hOrKzv9ro2.png)
Answers
Answer:
y = 30
z = 115
Step-by-step explanation:
z° + 65° = 180°
(Exterior Angles on the same side of transversal)
z° = 180° - 65°
z° = 115°
z = 115
(5y - 85)° + z° = 180°
(Linear pair angles)
(5y - 85)° + 115° = 180°
(5y - 85)° = 180° - 115°
(5y - 85)° = 65°
5y - 85 = 65
5y = 65 + 85
5y = 150
y = 150/5
y = 30
f(x) = 3x2 + 4x – 6
g(x) = 6x3 – 5x2 – 2
Find (f + g)(x).
Answers
Answer:
B
Step-by-step explanation:
(f+g)(x) = f(x) + g(x) = \(3x^{2} +4x-6+6x^3-5x^{2} -2\) = \(6x^{3}-2x^{2} +4x-8\)
(1A) At a movie theatre, the child ticket price is x dollars and the adult ticket price is $3.50 more than a child's ticket. One evening, 41 child tickets were sold and 65 adult tickets were sold. Which of these expressions represents the total ticket sales, in dollars? A) 41 65 350 x . B) 41x 65x 3.50 C) 41 65 350 x x . D) 41 65 350 x x .
Answers
Answer:
106x+227.5
Step-by-step explanation:
Given data
cost of child ticket= x
cost of adult ticket= x+3.5
If 41 child tickets were sold
then the amount is = 41x
also if 65 adult tickets were sold the amount
=(x+3.5)*65
=65x+227.5
Hence the total is expressed as
=41x+65x+227.5
=106x+227.5
in san francisco, 30% of workers take public transportation daily. for a sample of 10 workers, compute the standard deviation?
Answers
The standard deviation for a sample of 10 workers in San Francisco, where 30% of workers take public transportation daily ≈ 1.45.
To compute the standard deviation for a sample of 10 workers in San Francisco, where 30% of workers take public transportation daily, we need to make some assumptions and use the formula for the standard deviation of a binomial distribution.
Assuming that the workers are selected randomly and independently from the population, we can model the number of workers who take public transportation daily as a binomial distribution with parameters n = 10 (sample size) and p = 0.3 (probability of success).
The standard deviation (σ) of a binomial distribution is calculated using the formula:
σ = √(n * p * q)
where q = 1 - p is the probability of failure.
Substituting the provided values, we have:
σ = √(10 * 0.3 * 0.7)
= √(2.1)
≈ 1.45
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You have been given the opportunity to plan and coordinate the food for a 6th grade party. The
class has 228 students. The majority of 6th graders wanted the food shown in the table below
from the Deli joint. Answer the following questions as you plan the budget for food.
DELI Options
Pasta Salad
Potato Salad
Roast Beef Sandwich Meal
Chicken Sandwich Meal
Salami Sandwich Meal
Chips (1 bag)
Individual Fruit Salad cups
Price
$2.86 per pound
$3.49 per pound
$4.47
$4.29
$4.18
$0.95
$ 1.14
1) Use the deli price list from above to determine the cost of a Chicken sandwich for all
students.
Answers
The cost of a Chicken sandwich for all students is $976.92.
What is the cost formula?By dividing the total cost of manufacturing by the total amount paid in cash, the average total cost formula is produced. The total-cost formula, which can be calculated by dividing the total production cost by the volume of goods produced, is straightforward and user-friendly.
A Chicken Sandwich Meal is available for $4.29.
We must divide the price by the total number of pupils in order to calculate the cost of a chicken sandwich for every student:
Cost of Chicken Sandwich Meal = $4.29 per meal × 228 students = $976.92
Therefore, the cost of a Chicken sandwich for all students is $976.92.
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a colony is a statement far away from the government that rules it true or false
Answers
explanation :
Can you please help?
Answers
The midpoint is (-2,-6) so double this to end up at the other coordinates.
There’s a difference of 6 in the x coordinates.
There’s a difference of 10 in the y coordinates.
(4- -2)=6
(4- -6)=10
So, -2 minus 6 equals -8, -6 minus 10 equals -16, (-8,-16) is correct.
You can also check the midpoint to verify the new coordinates :)
Simplify the following expression.
Answers
The simplification of the expression ½(18t) + 2t(9) -12 is 27t-12
What is simplification of expression?Simplifying an expression is just another way to say solving a math problem. When you simplify an expression, you're basically trying to write it in the simplest way possible.
For example, 3a²+9a+12 can be simplified by bring out the common factors between the terms
= 3(a²+3a+4).
Similarly, 1/2(18t) + 2t(9) -12 can be simplified as;
9t + 18t -12
= 27t -12
therefore the simplification of ½(18t) + 2t(9) -12 is 27t-12
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Can anyone help me with this question.
Answers
Answer:
y=-5x+9
Step-by-step explanation:
y=-5x+b
y=4 x=1
4=-5(1)+b
9=b
Sally answered 90% of the math testquestions and 80% of the history test questions correctly. if each test had 50 questions , how many questions in all did she answer correctly?
Answers
85
Step by step explanation
I will give Brainliest AND a Cookie!
Answers
Answer:
it might be c not to sure
Step-by-step explanation:
sorry if u get it wrong
Answer:
c
Step-by-step explanation:
I CAN GET A COOKIE
Joe is building a fence around his garden. For every 2 feet of fencing, the cost is $12.
Complete the table below showing the length of the fence and the cost.
Answers
Answer:
See attachment
Step-by-step explanation:
See attachment
hello please answer need help
Answers
2x + 2y = 42
2w + q = 35
2w + v = 29
x + q + y - v = ?
x = 7
y = 14
w = 3
q = 29
v = 23
7 + 29 + 14 - 23 =
The answer is 27
Answer: \(\Large\boxed{27}\)
Step-by-step explanation:
Given information converted into a mathematical statement
\(a = icecream\\b=cookie\\c=brownie\\d=cake\\e=creamed cake\)
\(1)~a+b+a+b=42\)
\(2)~c+d+c=35\)
\(3)~c+c+e=29\)
\(4)~a+d+b-e=\mbox{?}\)
Simplify each equation
\(1)~2a+2b=42\)
\(2)~2c+d=35\)
\(3)~2c+e=29\)
\(4)~(a+b)+(d-e)=\mbox{?}\)
Factorize 2 out of the 1) equation
\(2a+2b=42\)
\(2(a+b)=42\)
Divide 2 on both sides
\(2(a+b)\div2=42\div2\)
\(a+b=21\)
Current system
\(1)~a+b=21\)
\(2)~2c+d=35\)
\(3)~2c+e=29\)
\(4)~(a+b)+(d-e)=\mbox{?}\)
Subtract 3) equation from the 2) equation
\((2c +d)-(2c+e)=(35)-(29)\)
Expand the parenthesis
\(2c+d-2c-e=35-29\)
Combine like terms
\(2c-2c+d-e=6\)
\(d-e=6\)
Current system
\(1)~a+b=21\)
\(2)~d-e=6\)
\(3)~(a+b)+(d-e)=\mbox{?}\)
Substitute values into the 3) equation to determine the final value
\((a+b)+(d-e)\)
\(=(21)+(6)\)
\(\Large\boxed{=27}\)
Hope this helps!! :)
Please let me know if you have any questions
Find the perimeter. Simplify your answer.
Answers
we have: \(P=(7c-5) +(10c-2) + (7c-5) = 7c-5+10c-2 + 7c-5=24c-12\)
ok done. Thank to me :>
If the F in Anova is NOT significant, then __________________.
a. the variability between the means is due to individual differences + error.
b. the variability within each group is due to individual differences + error
c. You should just do a post hoc test.
d. Who cares. I want to go home!
Answers
some of the group means are different, but not which pairs of groups.
A store offers four different brands of a product. It decides to illuminate one brand based off the likelihood a customer will return that brand. The table shows the number of items of each brand that were returned over the past year and the total sold.
Answers
The brand that the store should eliminate based on the information is Brand D.
How to illustrate the information?From the information, the store offers four different brands of a product and it decides to illuminate one brand based off the likelihood a customer will return that brand.
The return will be calculated as:
= Total sold / Returns
Therefore the values gotten will be:
The return will be:
Brand A = 0.0481.
Brand B = 0.0307
Brand C = 0.0410
Brand D = 0.0788
Therefore, D has the highest value and should be removed.
The complete question is attached.
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How many equivalent fractions can I make in order to be the same answer to 2/3
Answers
Answer:
Technically there's an infinite number of equivalent fractions for 2/3 but to list a few 4/6, 6/9, 8/12, 12/18, 18/27.
Step-by-step explanation:
Hope this helps!
-MoCKEry
The area of this rhombus is 140 square millimeters. One of its diagonals is 35 millimeters.
35 mm
What is the length of the missing diagonal, d?
Answers
Answer:
d = 8 mm
Step-by-step explanation:
You want the length of the other diagonal of a rhombus when one of them has length 35 mm and the area of the rhombus is 140 mm².
AreaThe area of a rhombus is half the product of the lengths of the diagonals:
A = 1/2(d1)(d2)
140 mm² = 1/2(35 mm)(d)
(280 mm²)/(35 mm) = d = 8 mm
The length of the missing diagonal is 8 mm.
What is the equation of the line parallel to y=-2x/3+3 and passes through the point (11, 1)?
Answers
Answer:
Step-by-step explanation:
y - 1 = \(-\frac{2}{3}\) ( x - 11 )
y = \(-\frac{2}{3}\) x + \(\frac{25}{3}\)
Inequalities
( 4 < 7 )
Multiply both sides by 3 , then by 2, then by 4, then by 9
(the parenthesis are not part of the problem, it's just to separate from the directions)
Answers
Answer:
Step-by-step explanation:
3*2 * 4 * 9 =36 * 6 = 216
216 ( 4 < 7)
864 < 1512
Use Evcel fo find the probabinty that in 112 trials with probabinty
0.42
of success that there are 30 or fewer suce ses. Round to 6 decimaiplaces Type your answer hern
Answers
Answer:
0.5
Step-by-step explanation:
0.5=0.42 then the answer is 0.5