4.5 For the following four regressions, predict the value of the y variable for the value of the x variable given. a. wage = 2.05 + 132education, where wage is dollars earned per hour and educa- tion is number of years the person went to school. Predict the wage if a person has 15 years of education. b. GPA 1.14 +0.23hours study, where GPA is measured in points and hours study is the number of hours spent studying in a week. Predict the GPA for a student who studies 11 hours a week sleep = 1033-044 work, where sleep is hours spent sleeping per night and work is the number of hours worked per day. Predict the amount of sleep a person gets a night if they work 7 hours a day c