Here are summary statistics for randomly selected weights of newborn​ girls: n equals = 214 214​, x overbar x equals = 26.5 26.5 ​hg, s equals = 6.3 6.3 hg. Construct a confidence interval estimate of the mean. Use a 90 90​% confidence level. Are these results very different from the confidence interval 25.2 25.2 hg less than < mu μ less than < 27.2 27.2 hg with only 14 14 sample​ values, x overbar x equals = 26.2 26.2 ​hg, and s equals = 2.1 2.1 ​hg?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section: Chapter Questions
Problem 8SGR
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Here are summary statistics for randomly selected weights of newborn​ girls: n
equals
=
214
214​,
x overbar
x
equals
=
26.5
26.5 ​hg, s
equals
=
6.3
6.3 hg. Construct a confidence interval estimate of the mean. Use a
90
90​% confidence level. Are these results very different from the confidence interval
25.2
25.2 hg
less than
<
mu
μ
less than
<
27.2
27.2 hg with only
14
14 sample​ values,
x overbar
x
equals
=
26.2
26.2 ​hg, and s
equals
=
2.1
2.1 ​hg?

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