Section 19

Question 1

The smaller the variability in a population, the
A. Larger the standard error of the mean.
B. Smaller the standard error of the mean.

Answer 1

B.

Question 2

According to the central limit theorem, the sampling distribution of means is normal. This statement is true or false

Answer 2

True

Question 3

Random sampling identifies a sample that is subject to sampling errors. This statement is true or false

Answer 3

True

Question 4

Ifm = 90.00 and SEM = 4.00, what are the limits of the 68% confidence interval for the mean
A. 86 and 90
B. 90 and 94
C. 4 and 8
D. 86 and 94

Answer 4

D. – not sure way just remember

Question 5

If you decrease the sample size what effect does this have on the size of the standard error of the mean?
A. It increases it
B. It decreases it

Answer 5

A. It increases it