A sample of size n = 56 is drawn from a normal population whose standard deviation is a=5.5. The sample mean x = 37.71. Part 1 of 2 (a) Construct a 99% confidence interval for u. Round the answer to at least two decimal places. A 99% confidence interval for the mean is Part 2 of 2

Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter13: Probability And Calculus
Section13.2: Expected Value And Variance Of Continuous Random Variables
Problem 10E
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A sample of size n = 56 is drawn from a normal population whose standard deviation is o=5.5. The sample mean is
x = 37.71.
-
Part 1 of 2
(a) Construct a 99% confidence interval for u. Round the answer to at least two decimal places.
A 99% confidence interval for the mean is
Part 2 of 2
<μ<
X
(b) If the population were not approximately normal, would the confidence interval constructed in part (a) be valid?
Explain.
2022 McGraw Hill
The confidence interval constructed in part (a) (Choose one) ▼ be valid since the
sample size (Choose one) ▼ large.
X
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Transcribed Image Text:A sample of size n = 56 is drawn from a normal population whose standard deviation is o=5.5. The sample mean is x = 37.71. - Part 1 of 2 (a) Construct a 99% confidence interval for u. Round the answer to at least two decimal places. A 99% confidence interval for the mean is Part 2 of 2 <μ< X (b) If the population were not approximately normal, would the confidence interval constructed in part (a) be valid? Explain. 2022 McGraw Hill The confidence interval constructed in part (a) (Choose one) ▼ be valid since the sample size (Choose one) ▼ large. X Submit Assignment rved. Terms of Use | Privacy Center | Accessibility 3
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ISBN:
9780321964038
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GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
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