Refer to the FVC data of Example 11 8 1 (a) Verify that the grand mean of all 481 FVC values is 4 56 (b) Taking into account the age distribution among the 481 subjects and the age distribution in the U S population, explain intuitively why the grand mean (4 56 liters) is smaller than the age adjus...

a b The two age distributions are as follows ...

Refer to the FVC data of Example 11.8.1. (a) Verify that the grand mean of all 481

Question:

Refer to the FVC data of Example 11.8.1.
(a) Verify that the grand mean of all 481 FVC values is 4.56.
(b) Taking into account the age among the 481 subjects and the age in the U.S. population, explain intuitively why the grand mean (4.56 liters) is smaller than the age-adjusted mean (4.67 liters).
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...