Studying and Grades.

A marketing professor at Givens College is interested in the relationship between hours spent studying and total points earned in a course. Data collected on 10 students who took the course last quarter are stored in the following data file.

Hours /Points 45/ 40 30 /35 90/ 75 60/ 65 105/ 90 65 /50 90 /90 80 /80 55 /45 75 /65

Conduct a regression analysis and use it to answer the following questions.

Question 17

What is the dependent variable?

Group of answer choices

Hours Spent Studying

Total Points Earned

Question 18

What percentage change in the points earned are determined by the hours spend studying? Express as a percentage (without the % symbol) and use 2 decimal places.

Question 19

Does the model do a better job estimating the Points than blindly guessing the Points (without knowing Hours Studied)?

Group of answer choices

Yes, it is a significant model.

No, it is not a significant model.

Question 20

Does the Hours Studied significantly impact the Points Earned?

Group of answer choices

Yes

No

Question 21

What is the added Points Earned when you increase the Hours Studied by 1 hour? Use 2 decimal places.

Question 22

Predict the total points earned by Mark Sweeney. He spent 95 hours studying. Use 2 decimal places.

Question 23

If you don't study at all, how many points could you expect to earn? Use 2 decimal places.