Question

A variable of a population has mean μ and standard deviation σ. For a large sample size n, fill in the blanks. Justify your answers.
a. Approximately % of all possible samples have means within σ/√n of the population mean, μ.
b. Approximately % of all possible samples have means within 2σ/√n of the population mean, μ.
c. Approximately % of all possible samples have means within 3σ/√n of the population mean, μ.
d. Approximately % of all possible samples have means within zα/2 of the population mean, μ.


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  • CreatedAugust 13, 2015
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