. Last semester Stat students anonymously reported how many alcoholic drinks they consume per week and how many hours they party per week. The summary statistics is shown:

Party Time Mean = 8 hours S = 7 hours

# of Drinks Mean = 10 drinks S = 11 drinks r = 0.8

PART I: PREDICTING DRINKING FROM PARTYING:

a) Find the equation of the regression lineY=b₀ + b₁X to predict number of drinks as a function of the party time.

b) Also, predict how many drinks someone who parties 20 hours a week has

PART II: PREDICTING PARTY TIME FROM DRINKING:

a) Find the equation of the regression lineY=b₀ + b₁X to predict party time as a function of the number of drinks

.

b) Predict how many hours of partying someone who has about 5 drinks per week does.