The size of the sample required to estimate a population mean is ...

[silviawilliams41]

The size of the sample required to estimate a population mean is __________ proportional to the __________ of the characteristic in the population.
 a. directly, variability
  b. inversely, variability
  c. inversely, size
  d. directly, size
  e. uniformly, sizeConsider the factors:1 . the standard error of the estimate2 . the desired precision of the estimate3 . the desired degree of confidence4 . the size of the population

Question 2

Which of the following are required to determine the sample size necessary to estimate a population mean?
 a. Knowledge about or an estimate of the population variance
  b. A statement of the degree of precision desired
  c. A statement of the degree of confidence desired
  d. Both b and c.
  e. a, b, and c.

[bulacsom]

Answer to Question 1

a

Answer to Question 2

E

[silviawilliams41]

Wow, this really help

[lcapri7]

Thanks for the timely response, appreciate it