Here are summary statistics for randomly selected weights of newborn girls: n = 178, x= 30.8 hg, s=7.2 hg.

Construct a confidence interval estimate of the mean. Use a 98% confidence level. Are these results very different

from the confidence interval 29.4 hg <µ<33.0 hg with only 17 sample values, x= 31.2 hg, and s=2.9 hg?

What is the confidence interval for the population mean μ?

hg<μ

Are the results between the two confidence intervals very different?

OA. Yes, because the confidence interval limits are not similar.

O B. No, because each confidence interval contains the mean of the other confidence interval.

OC. No, because the confidence interval limits are similar.

O D. Yes, because one confidence interval does not contain the mean of the other confidence interval.

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