Question

A measurement is normally distributed with ?=16 and ?=4.2. Round answers below to three decimal places....

A measurement is normally distributed with ?=16 and ?=4.2. Round answers below to three decimal places.

(a) The mean of the sampling distribution of ?¯¯ for samples of size 8 is:

(b) The standard deviation of the sampling distribution of ?¯¯ for samples of size 8 is:

Math   Statistics-And-Probability   
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Answer #1

1)

The mean of the sampling distribution of

= = 16

2)

The standard deviation of the sampling distribution of

= / sqrt(n)

= 4.2 / sqrt(8)

= 1.485

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