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Suppose a 95% Confidence Interval for μ Turns Out to Be

Question 20

Multiple Choice

Suppose a 95% confidence interval for μ turns out to be (1,000,2,100) .To make more useful inferences from the data,it is desired to reduce the width of the confidence interval.Which of the following will result in a reduced interval width?


A) Increase the sample size.
B) Increase the confidence level.
C) Increase the population mean.
D) Increase the sample mean.

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