Math, asked by adijanu1702, 1 year ago

A sample of 400 items is taken from a normal population whose mean as well as varaince is 4. If the sample mean is 4.5, can the sample be regarded as truly random sample

Answers

Answered by ammu786

2

no ........................................

Answered by dashingdhanshri

2

no the sample can't be regarded as truly random sample

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