Here are summary statistics for randomly selected weights of newborn girls: n = 194, x= 30.5 hg, s=6.8 hg. Construct a confidence interval estimate of the mean. Use a 98% confidence level. Are these results very different from the confidence interval 29.2 hg

A First Course in Probability (10th Edition)
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Author:Sheldon Ross
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Chapter1: Combinatorial Analysis
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Here are summary statistics for randomly selected weights of newborn girls: n = 194, x 30.5 hg, s= 6.8 hg. Construct a confidence interval estimate of the mean.
Use a 98% confidence level. Are these results very different from the confidence interval 29.2 hg <p<32.4 hg with only 18 sample values, x= 30.8 hg, and
s=2.7 hg?
t: 0
What is the confidence interval for the population mean u?
T hg<u<hg (Round to one decimal place as needed.)
Transcribed Image Text:Here are summary statistics for randomly selected weights of newborn girls: n = 194, x 30.5 hg, s= 6.8 hg. Construct a confidence interval estimate of the mean. Use a 98% confidence level. Are these results very different from the confidence interval 29.2 hg <p<32.4 hg with only 18 sample values, x= 30.8 hg, and s=2.7 hg? t: 0 What is the confidence interval for the population mean u? T hg<u<hg (Round to one decimal place as needed.)
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