If you were to graph sample accuracy and sample size, which of the following generalizations would be most accurate?
a. Accuracy is very low, even with small sample sizes of 50 or below.
b. Accuracy constantly increases as sample size increases; a sample of 2,000 is four times more accurate than a sample of 500.
c. With increases in sample size, sample accuracy decreases.
d. We cannot graph sample size and accuracy because we must also include the level of confidence and the variability within the sample data.
e. Accuracy increases rapidly when sample size increases up to about 500 and then levels off.
Answer: e. Accuracy increases rapidly when sample size increases up to about 500 and then levels off.