Refer to Exercise 46. Suppose the distribution is normal (the cited article makes that assumption and even

Question:

Refer to Exercise 46. Suppose the is normal (the cited article makes that assumption and even includes the corresponding normal density curve).
a. Calculate P(69 ≤ ≤ 71) when n = 16.
b. How likely is it that the sample mean diameter exceeds 71 when n = 25?
Distribution
The word "distribution" has several meanings in the financial world, most of them pertaining to the payment of assets from a fund, account, or individual security to an investor or beneficiary. Retirement account distributions are among the most...