Here are summary statistics for randomly selected weights of newborn girls: n=198, x =32.7 hg, s = 7.8 hg. Construct a confidence interval estimate of the mean. Use a 98% confidence level. Are these results very different from the confidence interval 30.4 hg

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
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Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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Here are summary statistics for randomly selected weights of newborn girls: n=198, x =32.7 hg, s = 7.8 hg. Construct a confidence interval estimate of the mean.
Use a 98% confidence level. Are these results very different from the confidence interval 30.4 hg<p<34.6 hg with only 19 sample values, x 32.5 hg, and s 3.6
hg?
What is the confidence interval for the population mean u?
hg<p<hg (Round to one decimal place as needed.)
Transcribed Image Text:Here are summary statistics for randomly selected weights of newborn girls: n=198, x =32.7 hg, s = 7.8 hg. Construct a confidence interval estimate of the mean. Use a 98% confidence level. Are these results very different from the confidence interval 30.4 hg<p<34.6 hg with only 19 sample values, x 32.5 hg, and s 3.6 hg? What is the confidence interval for the population mean u? hg<p<hg (Round to one decimal place as needed.)
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