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A 99% Confidence Interval Estimate for a Population Mean

question 149

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A 99% confidence interval estimate for a population mean A 99% confidence interval estimate for a population mean is determined to be 85.58 to 96.62. If the confidence level is reduced to 90%, the confidence interval for : A) becomes wider B) remains the same C) becomes narrower D) becomes wider on the left but remains the same on the right E) does none of these is determined to be 85.58 to 96.62. If the confidence level is reduced to 90%, the confidence interval for A 99% confidence interval estimate for a population mean is determined to be 85.58 to 96.62. If the confidence level is reduced to 90%, the confidence interval for : A) becomes wider B) remains the same C) becomes narrower D) becomes wider on the left but remains the same on the right E) does none of these :

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