SOLUTION: If we take sample of size 36 from N(90, 12)' the distribution of the sample mean is then..
A. Approximately normal with a mean of 90 and standard deviation of 2
B. Approximately
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-> SOLUTION: If we take sample of size 36 from N(90, 12)' the distribution of the sample mean is then..
A. Approximately normal with a mean of 90 and standard deviation of 2
B. Approximately
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Question 855778: If we take sample of size 36 from N(90, 12)' the distribution of the sample mean is then..
A. Approximately normal with a mean of 90 and standard deviation of 2
B. Approximately normal with a mean if 15 and a standard deviation of 9
C. Approximately normal with a mean of 2 and a standard deviation of 90
D. Approximately normal with a mean of 90 and a standard deviation of 6 Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! If we take sample of size 36 from N(90, 12)' the distribution of the sample mean is then..
mean of sample means = 90
std of sample means = 12/sqrt(36) = 12/6 = 2
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Ans: A
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Cheers,
Stan H.
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A. Approximately normal with a mean of 90 and standard deviation of 2
B. Approximately normal with a mean if 15 and a standard deviation of 9
C. Approximately normal with a mean of 2 and a standard deviation of 90
D. Approximately normal with a mean of 90 and a standard deviation of 6
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