HW 12

Please turn in a file with output and written discussion and another file containing your SAS code.

Q1. (12 points)

Use the bikes data set for the series of questions below:

a. Subsetting (4 points)

Create a new subset that only contains observations from the third quarter of the year (Season =3).

n. T-test (4 points)

Describe a t-test procedure, including the necessary assumptions.

c. PROC TTEST (4 points)

Use PROC TTEST to evaluate whether more trips are taken per hour per day, on average, on weekdays or weekends. Use the total “COUNT” variable and summarize the results in words.