To Figure Out Whether Our Sample Appears to Have Come

Multiple Choice

To figure out whether our sample appears to have come from a population exhibiting a normal distribution, which of the following is least useful?

A) Creating a histogram of the data and looking at it carefully.
B) Judging the linearity of values on a quantile plot of the data.
C) Measuring the mean and variance to see if they are equal.
D) Performing a Shapiro-Wilk test on the data.