Suppose that you are testing the hypotheses H0: μ=17 HA: μ>17. A sample of size 25 results in a sample mean of 17.5 and a sample standard deviation of 2.2. a) What is the standard error of the mean? b) What is the critical value of t* for a 95% confidence interval? c) Construct a 95% confidence interval for μ. d) Based on the confidence interval, at α=0.025 can you reject H0? Explain
Suppose that you are testing the hypotheses H0: μ=17 HA: μ>17. A sample of size 25 results in a sample mean of 17.5 and a sample standard deviation of 2.2. a) What is the standard error of the mean? b) What is the critical value of t* for a 95% confidence interval? c) Construct a 95% confidence interval for μ. d) Based on the confidence interval, at α=0.025 can you reject H0? Explain
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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Suppose that you are testing the hypotheses
H0:
μ=17
HA:
μ>17.
A sample of size
25
results in a sample mean of
17.5
and a sample standard deviation of
2.2.
a) What is the standard error of the mean?
b) What is the critical value of t* for a
95%
confidence interval?
c) Construct a
95%
confidence interval for
μ.
d) Based on the confidence interval, at
α=0.025
can you reject
H0?
Explain
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