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Here are summary statistics for randomly selected weights of newborn​ girls: nequals=187187​, x overbarxequals=32.132.1 ​hg, sequals=7.37.3 hg. Construct a confidence interval...

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Question

Statistics

Here are summary statistics for randomly selected weights ofnewborn​ girls:

nequals=187187​,

x overbarxequals=32.132.1

​hg,

sequals=7.37.3

hg. Construct a confidence interval estimate of the mean. Usea

9090​%

confidence level. Are these results very different from theconfidence interval

31.431.4

hgless than

hg with only

2020

sample​ values,

x overbarxequals=32.532.5

​hg, and

sequals=2.82.8

​hg?

What is the confidence interval for the population mean

muμ​?

nothing

hgless than

hg ​(Round to one decimal place as​ needed.)

Answer & Explanation Solved by verified expert
4.5 Ratings (737 Votes)
Solution Given thatPoint estimate sample mean 321 hgsample standard deviation s    See Answer
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