A sample of size n-92 is drawn from a normal population whose standard deviation is a-6.8. The sample mean is -40.49. Part 1 of 2 (a) Construct a 99.5% confidence interval for μ. Round the answer to at least two decimal places. A 99.5% confidence interval for the mean is
A sample of size n-92 is drawn from a normal population whose standard deviation is a-6.8. The sample mean is -40.49. Part 1 of 2 (a) Construct a 99.5% confidence interval for μ. Round the answer to at least two decimal places. A 99.5% confidence interval for the mean is
MATLAB: An Introduction with Applications
6th Edition
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Author:Amos Gilat
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Chapter1: Starting With Matlab
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![A sample of size n-92 is drawn from a normal population whose standard deviation is a 6.8. The sample mean is x -40.49.
Part 1 of 2
(a) Construct a 99.5% confidence interval for μ. Round the answer to at least two decimal places.
A 99.5% confidence interval for the mean is
<<
Part 2 of 21
(b) If the population were not approximately normal, would the confidence interval constructed in part (a) be valid? Explain.
be valid since the sample size (Choose one) ▼large.
The confidence interval constructed in part (a) (Choose one)
X](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F3c923d41-d3c6-433d-b19b-1aeb5be1b577%2F0abf1906-60eb-4d32-ab88-2b9727f9f590%2F73w744e_processed.jpeg&w=3840&q=75)
Transcribed Image Text:A sample of size n-92 is drawn from a normal population whose standard deviation is a 6.8. The sample mean is x -40.49.
Part 1 of 2
(a) Construct a 99.5% confidence interval for μ. Round the answer to at least two decimal places.
A 99.5% confidence interval for the mean is
<<
Part 2 of 21
(b) If the population were not approximately normal, would the confidence interval constructed in part (a) be valid? Explain.
be valid since the sample size (Choose one) ▼large.
The confidence interval constructed in part (a) (Choose one)
X
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