What test statistic should you should use to test Ho versus H1? Select one: O a. Z X-Ho - N(0,1) O b. T= tn-1 O c. W = (n-1)8 Now suppose that n = 16, the observed sample mean ä is 8.9. the observed sample variance s² is 25 and 4o = 10.5. Suppose we next want to compute a 95% confidence interval for u. What is the lower endpoint of this 95% confidence interval? Give answer to three decimal places. What is the upper endpoint of this 95% confidence interval? Give answer to three decimal places.
What test statistic should you should use to test Ho versus H1? Select one: O a. Z X-Ho - N(0,1) O b. T= tn-1 O c. W = (n-1)8 Now suppose that n = 16, the observed sample mean ä is 8.9. the observed sample variance s² is 25 and 4o = 10.5. Suppose we next want to compute a 95% confidence interval for u. What is the lower endpoint of this 95% confidence interval? Give answer to three decimal places. What is the upper endpoint of this 95% confidence interval? Give answer to three decimal places.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:Consider a random sample of size n from a normal distribution with unknown mean u and unknown variance o?. Suppose the sample mean is
X and the sample variance is S?. We would like to test Ho : µ = µo versus H1 : µ + µo.
What test statistic should you should use to test Ho versus H1?
Select one:
X-
O a. Z=
N(0, 1)
O b. T =
tn-1
O c. W =
(n-1)s2
Xn-1
Now suppose that n = 16, the observed sample mean a is 8.9. the observed sample variance s is 25 and Ho = 10.5.
Suppose we next want to compute a 95% confidence interval for u.
What is the lower endpoint of this 95% confidence interval? Give answer to three decimal places.
What is the upper endpoint of this 95% confidence interval? Give answer to three decimal places.
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