Suppose a 95 confidence interval for the population mean


Suppose a 95% confidence interval for the population mean turns out to be (1,000, 2,000). 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 confidence level

b. Increase the population mean

c. Increase the sample mean

d. Increase the sample size

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Financial Management: Suppose a 95 confidence interval for the population mean
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