I. Online you will find the file $$GSK$.$csv$.$ The csv file has

the following columns:

Column $1.$ sysbp: The systolic blood pressure of the

subject $($mmHg$).$

Column $2.$ gender: The gender, with levels F and M$.$

Column $3.$ married: Y if the subject was married, N if

not.

Column $4.$ exercise: With levels L $=$ low, M $=$

medium, H $=$ high.

Column $5.$ age: The age of the subject in years.

Column $6.$ stress: With levels LS $=$ low, MS $=$

medium, HS $=$ high.

Column $7.$ educatn: With levels LE $=$ low, ME $=$

medium, HE $=$ high.