Question

A population has a standard deviation σ of 36 units. (Give your answers correct to two...

A population has a standard deviation σ of 36 units. (Give your answers correct to two decimal places.)

(a) Find the standard error for the mean (standard deviation of sample mean) if n = 28.

(b) Find the standard error for the mean if n = 50.

(c) Find the standard error for the mean if n = 85.

Math   Statistics-And-Probability   
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Answer #1

a) 6.80

b)5.09

c) 3.90

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