SAS The worksheet blood has measurements on blood pressure in placebo group and drug group. Please advise data step that lead a data set that has the...

SAS

The worksheet blood has measurements on blood pressure in placebo group and drug group. Please advise data step that lead a data set that has the following statistics:

a.     Mean for placebo and for drug

b.     Pooled variance

c.     Student's t

(Note that the data step must calculate the statistics if the sample size and data are changed)

Worksheet at: https://drive.google.com/file/d/1v_ovA50P7Xp4N3ytg3oD53yKpE9iauwi/view?usp=sharing