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Confidence interval would be wider

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Suppose a random sample of 50 college students are asked to measure the length of their right foot in centimeters. A 95% confidence interval for the mean foot length for students at the college is found to be 21.709 to 25.091 cm. If a 99% confidence interval were calculated instead, how would it differ from the 95% confidence interval ?

A. The 99% confidence interval would be wider
B. The 99% confidence interval would be narrower
C. The 99% confidence interval would have the same width as the 95% confidence interval
D. There is no way to tell if the 99% confidence interval would be wider or narrower than the 95% confidence interval.

Reference no: EM133245375

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