In constructing a confidence interval, suppose a student decides to decrease the level of confidence from 95% to 90 %. Assume all other quantities of interest remain unchanged. Which answer best describes the resulting effect (if any) on the confidence interval? Select one:a. The width of the confidence interval will be narrower. b. The width of the confidence interval will be unchanged. c. The width of the confidence interval will be wider. d. The upper and lower limits of the confidence interval will be shifted down by an equal distance. e. The confidence interval will no longer contain µ.
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