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A simple random sample of size nequals=8181 is obtained from a population with mu equals 73?=73 and sigma equals 18?=18. ?(a)...

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Question

Basic Math

A simple random sample of size

nequals=8181

is obtained from a population with

mu equals 73?=73

and

sigma equals 18?=18.

?(a) Describe the sampling distribution of

x overbarx.

?(b) What is

Upper P left parenthesis x overbar greater than 75.9 rightparenthesisP x>75.9??

?(c) What is

Upper P left parenthesis x overbar less than or equals 68.8right parenthesisP x?68.8??

?(d) What is

Upper P left parenthesis 71 less than x overbar less than 77.8right parenthesisP 71

Answer & Explanation Solved by verified expert
3.6 Ratings (546 Votes)
Using central limit    See Answer
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