Mathematics, 26.05.2021 21:00 GreenHerbz206
The width of a confidence interval estimate for a population mean when the population standard deviation (sigma) is
known will
Select one:
A. become wider if the sample size increases and the confidence level is unchanged
B. become wider if the sample size remains the same and the confidence level decreases
C. not change it only the sample size is increased
D. become narrower if the size of the sample being used is increased and the confidence level is unchanged
E. become narrower if the size of the sample is decreased and the confidence level is unchanged
Answers: 1
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