Kizspy | Question: 124
(Choose 1 answer)
Suppose a 95% confidence interval for population mean turns out to be (1000, 2100). 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?
Choose the best answer.
A. Decrease the confidence level.
B. Both increase the sample size and decrease the confidence level.
C. Increase the sample size.
D. Both increase the confidence level and decrease the sample size.
