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Given a normal population whose mean is 440 and whose standard deviation is 26, find each...

Given a normal population whose mean is 440 and whose standard deviation is 26, find each of the following (use Excel to obtain more accuracy):

A. The probability that a random sample of 4 has a mean between 442 and 450.

Probability =

B. The probability that a random sample of 16 has a mean between 442 and 450.

Probability =

C. The probability that a random sample of 29 has a mean between 442 and 450.

Probability =

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