The appropriate test to use for comparing a single sample mean to ...

[123654777]

The appropriate test to use for comparing a single sample mean to the population mean is _____.
 
  a. Cohen's d c. the z test
  b. t test for independent groups d. the standard error of the mean

Question 2

The variance of the sampling distribution of the mean is _____ the variance each of the samples.
 
  a. less than c. equal to
  b. more than d. none of these

[fraziera112]

Answer to Question 1

C
The z test can be used once the sample mean has been converted to a standard score.

Answer to Question 2

A
The variance is lower in the sampling distribution of the mean because it is comprised of means, which are measures of the centers of the distributions they represent.

[123654777]

Excellent

[mcabuhat]

TYSM