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:
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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