A sample of size n = 42 is drawn from a population whose standard deviation is...

Question

Question

A sample of size n = 42 is drawn from a population whose standard deviation is σ = 7.5. Find the margin of error for a 99% confidence interval for μ.

math Statistics-And-Probability

Answer 1

Answer #1

The margin of error for a 99% confidence interval for is

or

Answer 2

Similar Homework Help Questions

A sample of size π=95 is drawn from a population whose standard deviation is σ=27.

A sample of size π=95 is drawn from a population whose standard deviation is σ=27. Part 1 of 2 (a) Find the margin of error for a 99% confidence interval for H. Round the answer to at least three decimal places. The margin of error for a 99% confidence interval for u is _______ . Part 2 of 2 (b) If the confidence level were 90%, would the margin of error be larger or smaller?
Queso UDP- A sample of size n = 69 is drawn from a population whose standard...

Queso UDP- A sample of size n = 69 is drawn from a population whose standard deviation is o = 21. Part 1 out of 2 Find the margin of error for a 99% confidence interval for j. Round the answer to three decimal places, if necessary. The margin of error for a 99% confidence interval for p is
A sample of size n = 18 is drawn from an approximately normal population whose 3)...

A sample of size n = 18 is drawn from an approximately normal population whose 3) standard deviation is σ = 7.5 sample mean is x = 46.1Construct a 98% confidence interval for μ.

A sample of size n=95 is drawn from a population whose standard deviation iso = 38....

A sample of size n=95 is drawn from a population whose standard deviation iso = 38. Part 1 of 2 (a) Find the margin of error for a 90% confidence interval for u. Round the answer to at least three decimal places. The margin of error for a 90% confidence interval for p is Part 2 of 2 (b) If the sample size were n = 62, would the margin of error be larger or smaller? (Choose one) , because...
A sample of size n=20 is drawn from an approximately normal population whose standard deviation is...

A sample of size n=20 is drawn from an approximately normal population whose standard deviation is 15.5 The sample mean is 46.2. Construct a 95% confidence interval for μ.
99 and standard deviation σ A population whose distribution is unknown has mean μ and a sample of...

99 and standard deviation σ A population whose distribution is unknown has mean μ and a sample of size 26 is drawn from this population, then 1, a. The mean oJ a b. The standard error ot c. The distribution of A population whose distribution is unknown has mean μ = 99 and standard deviation σ = 7 and a sample of size 26 is drawn from this population, then 1, a. b. c. The mean of X= The standard...

A sample of size n=96 is drawn from a normal population whose standard deviation is 5.7....

A sample of size n=96 is drawn from a normal population whose standard deviation is 5.7. The sample mean is 41.68. Construct a 99.9% confidence interval for m.
92.19-T Question Help A simple random sample of size n is drawn from a population that...

92.19-T Question Help A simple random sample of size n is drawn from a population that is normally distributed. The sample mean, x, is found to be 18.3, and the sample standard deviation s, is found to be 5.6. (a) Construct a 90% confidence interval about if the sample size, n, is 31. (b) Construct a 90% confidence interval about μ if the sample size, n' is 61 . How does increasing the sample size affect the margin of error,...
Please show all work!!! 11.* A random sample of size n 64 is drawn from a...

Please show all work!!! 11.* A random sample of size n 64 is drawn from a population with mean μ and standard deviation σ. The mean and standard deviation of the sample are X = 308.9 and s 31.9 a. Find a 90%confidence interval for the mean μ. Interpret this interval. b. Find a 95%confidence interval for the mean μ. Interpret this interval. c. Find a 99%confidence interval for the mean μ. Interpret this interval. d. Compare the widths of...

A random sample of 175 items is drawn from a population whose standard deviation is known...

A random sample of 175 items is drawn from a population whose standard deviation is known to be σ = 50. The sample mean is x¯x¯ = 920. (a) Construct an interval estimate for μ with 95 percent confidence. (Round your answers to 1 decimal place.) The 95% confidence interval is from to (b) Construct an interval estimate for μ with 95 percent confidence, assuming that σ = 100. (Round your answers to 1 decimal place.) The 95% confidence interval is...