A 95% confidence interval estimate for a population mean u is determined to be 75.38 to 86.52. If the confidence level is reduced to 90%, the confidence interval for u A. becomes wider B. remains the same C. becomes narrower D ... none of the above answers is correct
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Home » Mathematics » A 95% confidence interval estimate for a population mean u is determined to be 75.38 to 86.52. If the confidence level is reduced to 90%, the confidence interval for u A. becomes wider B. remains the same C. becomes narrower D ...