In developing an interval estimate of the population mean, if the population standard deviation is unknown _____. Group of answer choices a.the sample standard deviation and t distribution can be used...



In developing an interval estimate of the population mean, if the population standard deviation is unknown _____.


Group of answer choices

a.the sample standard deviation and
t distribution can be used



b.it is impossible to develop an interval estimate



c.None of the answers is correct.



d.a sample proportion can be used




Jun 09, 2022
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