Here are summary statistics for randomly selected weights of newborn girls: n=171, x-30.2hg, s-7.5 hg. Construct a confidence interval estimate of the mean. Use 98%confidence level. a. Degrees of fredom= Select| b. ta/2= | Select I

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:
n=171, x-30.2hg, s=7.5 hg. Construct a confidence interval estimate of the mean. Use
98%confidence level.
a. Degrees of fredom= | Select |
b. ta2= I Select]
| Select I
C. E( margin of error)= | Select|
d. Confidence interval= | Select !
Are these results very different from the confidence interval
27.0 hg<u<32.2hg with only 12 sample values, x-29.6hg, and s=3.3 hg?
| Select I
Transcribed Image Text:Here are summary statistics for randomly selected weights of newborn girls: n=171, x-30.2hg, s=7.5 hg. Construct a confidence interval estimate of the mean. Use 98%confidence level. a. Degrees of fredom= | Select | b. ta2= I Select] | Select I C. E( margin of error)= | Select| d. Confidence interval= | Select ! Are these results very different from the confidence interval 27.0 hg<u<32.2hg with only 12 sample values, x-29.6hg, and s=3.3 hg? | Select I
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