Consider the following 10 observations on the lifetime (in hours) for a certain type of power supply:

Question:

Construct a normal probability plot, and comment on whether it is reasonable to think that the distribution of power supply lifetime is approximately normal. (The normal scores for a sample of size 10 are 21.539, 21.001, 20.656, 20.376, 20.123, 0.123, 0.376, 0.656, 1.001, and 1.539.)

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...