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Suppose that in a hypothesis test with null hypothesis = 13.0 at 0.05, that a value of 11.0 for the sample mean results in the null hypothesis not being rejected. That corresponds to a confidence interval result of
A. The 95% confidence interval for the mean does not contain the value 13.0
B. The 95% confidence interval for the mean contains the value 11.0
C. There is insufficient information to conclude whether the 95% confidence interval for the mean contains or does not contain the value 13.0
D. The 95% confidence interval for the mean contains the value 13.0
Find the margin of error for the 95% confidence interval used to estimate the population proportion.
Misery loves company. It is time for the PE (professional engineer's exam). The results of the national test were normally distributed around the mean score of 70.
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