Section 18

Question 1

Decreasing sample size
A. Decreases precision
B. Decreases bias
C. Decreases precision and decreases bias

Answer 1

A. Decreases precision

Question 2

Which of the following will produce a greater reduction in sampling errors?
A. Increasing the size of a sample from 100 to 150
B. Increasing the size of a sample from 300 to 350

Answer 2

A. Increase from 100 to 150

Question 3

Even small samples can identify very large differences this statement is true or false

Answer 3

True

Question 4

For populations with very limited variability, very large sample are needed for sufficient precision this statement is true or false

Answer 4

False

Question 5

Using a large sample size eliminates bias. This statement is true or false

Answer 5

False