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Author Question: A 99% confidence interval for the population meanis found to be (84.76, 92.17). If we were to use ... (Read 82 times)

blkth103

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Question 1

A 95% confidence interval for the population proportion of professional tennis players who earn more than $2 million per year is found to be between 0.82 and 0.88. Given this information, the sample size that was used was approximately:

545.


382.


233.


387.



Question 2

A 99% confidence interval for the population meanμ is found to be (84.76, 92.17). If we were to use the same sample to construct a 95% confidence interval for this parameter, the 95% interval would be:

wider than the 99% confidence interval.


the same width as the 99% confidence interval.


narrower than the 99% confidence interval.


unrelated to the 99% confidence interval in terms of center and width.



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Marked as best answer by blkth103 on Feb 26, 2023

mgranuc

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blkth103

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Reply 2 on: Feb 26, 2023
:D TYSM


helenmarkerine

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

 

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