Here are summary statistics for randomly selected weights of newbom girls: n=245, x 262 hg. s-66 hg. Construct a confidence interval estimate of the mean Use a 99% confidence level. Are these results very different from the confidence interval 25.2 hg p27.8 hg with only 20 sample values, x=26.5 hg, and s-21hg? What is the confidence interval for the population mean ? <

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 1GP
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Here are summary statistics for randomly selected weights of newborn girls: ne245, x 262 hg. s-6.6 hg. Construct a confidence interval estimate of the mean. Use a 99% confidence level. Are these
results very different from the confidence interval 25.2 hg 27.8 hg with only 20 sample values, x=26.5 hg, and s-2.1 hg?
What is the confidence interval for the population mean u?
hghg (Round to one decimal place as needed.)
C
Transcribed Image Text:Here are summary statistics for randomly selected weights of newborn girls: ne245, x 262 hg. s-6.6 hg. Construct a confidence interval estimate of the mean. Use a 99% confidence level. Are these results very different from the confidence interval 25.2 hg 27.8 hg with only 20 sample values, x=26.5 hg, and s-2.1 hg? What is the confidence interval for the population mean u? hghg (Round to one decimal place as needed.) C
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