Question

A manager wishes to estimate a population mean using a 95​% confidence interval estimate that has...

A manager wishes to estimate a population mean using a 95​% confidence interval estimate that has a margin of error of

±44.0 If the population standard deviation is thought to be 610​, what is the required sample​ size?

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

For the 95% confidence interval, the margin of error is ±44.0 and the population SD(s) is 610

Let the sample size be n

By the problem,

The required sample size is 738

Hopefully this will help you. In case of any query, do comment. If you are satisfied with the answer, give it a like. Thanks.

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A manager wishes to estimate a population mean using a 99​% confidence interval estimate that has...
A manager wishes to estimate a population mean using a 99​% confidence interval estimate that has a margin of error of plus or minus±48.0 If the population standard deviation is thought to be 630​, what is the required sample​ size? The sample size must be at least?
Assume that you want to construct a​ 95% confidence interval estimate of a population mean. Find...
Assume that you want to construct a​ 95% confidence interval estimate of a population mean. Find an estimate of the sample size needed to obtain the specified margin of error for the​ 95% confidence interval. The sample standard deviation is given below. Margin of errors=​$6​, standard deviation=​$22 The required sample size is __
Find the margin of error for a​ 95% confidence interval for estimating the population mean when...
Find the margin of error for a​ 95% confidence interval for estimating the population mean when the sample standard deviation equals 90 with a sample size of​ (i) 484 and​ (ii) 1600 ​(i) Find the margin of error for a​ 95% confidence interval for estimating the population mean when the sample standard deviation equals 90 with a sample size of 484 (ii). ​(ii) Find the margin of error for a​ 95% confidence interval for estimating the population mean when the...
The sample size required to estimate, at 95% confidence, a population mean with a maximum allowable...
The sample size required to estimate, at 95% confidence, a population mean with a maximum allowable margin of error of +/- 1.5 when the population standard deviation is 5 is ____ observations. The sample size required to estimate, at 90% confidence, a population proportion with a maximum allowable margin of error of +/- 3.00 percentage points is ____ observations.
Using a T-Interval on your calculator to find a 95% confidence interval estimate of a mean...
Using a T-Interval on your calculator to find a 95% confidence interval estimate of a mean when the sample mean from a sample of 35 individuals is 132.5 and the sample standard deviation is 14.7, what is the resulting margin of error?
Find the margin of error for a​ 95% confidence interval for estimating the population mean when...
Find the margin of error for a​ 95% confidence interval for estimating the population mean when the sample standard deviation equals 100 with a sample size of​ (i)484 and​ (ii)1521. What is the effect of the sample​ size?
Use the given data to find the 95% confidence interval estimate of the population mean ?....
Use the given data to find the 95% confidence interval estimate of the population mean ?. Assume that the population has a normal distribution. IQ scores of professional athletes: Sample size ?=25 Mean ?⎯⎯⎯=106 Standard deviation ?=11 ________<?__________
Use the given data to find the 95% confidence interval estimate of the population mean ?....
Use the given data to find the 95% confidence interval estimate of the population mean ?. Assume that the population has a normal distribution. IQ scores of professional athletes: Sample size ?=25 Mean ?⎯=104 Standard deviation ?=12 = ...<?<...
(S 9.2) Recall that a confidence interval for the sample mean can be calculated using the...
(S 9.2) Recall that a confidence interval for the sample mean can be calculated using the interval x¯?tn?1?sn??????x¯+tn?1?sn??? Thus, the margin of error is tn?1?sn??? We can recover the margin of error from an interval constructed on the calculator using algebra. Suppose a random sample of size 16 was taken from a normally distributed population, and the sample standard deviation was calculated to be s = 6.3. We'll assume the sample mean is 10 for convenience. a) Calculate the margin...
Confidence Interval. Calculate a 80% confidence interval to estimate the population mean using the following data:...
Confidence Interval. Calculate a 80% confidence interval to estimate the population mean using the following data: Sample mean = 20, sample standard deviation =5, sample size = 16. Do not forget conclusion.
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT