1. Then answer these questions using your data printout:

A. At least one of the people has a mistake in the original data in Figure 19.1: one or more numbers are out of the permitted range for one or more variables. Reading from your frequency printout, which subject number(s) have a mistake? (Leave the mistake in.) Remember that though you can probably tell from scanning the data on the page, you will soon be working with data sets that are far too large to “eyeball”

statistical results. You will need a statistical program to read in your data and do your analyses!

B. What is the percentage of people in the data set from Michigan?

C. What is the average age? What age is the youngest person? What age is the oldest?

D. What is the standard deviation of survey question 18? Is this the survey question with the most variation in responses?

E. Are scores on the Openness personality test approximately normally distributed? How can you tell?

F. For each person in the data set, add the 18 survey questions to get a total for the survey. Which person had the highest total—that is, likes eating healthy vegetables the most? (Consult one of the statistical package reference books for instructions.)

G. Find the mean average of the total from F for Michigan and California people separately. (Consult the references for methods of averaging by gender or any other grouping variable.)