Mathematics, 20.10.2020 22:01 ndnsnsnsmns
A 95% confidence interval is found to be (24, 30). The sample standard deviation is 7.5, and the sample size is 25. If you wanted a smaller interval, what could you do?
A. Increase the sample size to 36.
B. Decrease the sample size to 20.
C. Increase the confidence level to 99.7%.
D. None of these
Answers: 1
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A 95% confidence interval is found to be (24, 30). The sample standard deviation is 7.5, and the sam...
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