Regression Analysis

Prof. Bumble is a statistics professor at a large private university in FL. He often forgets where he has parked his car and has to be escorted there by the university security staff. He has been there a long time and Dr. Jekyll of the medical staff has noticed that as Prof. Bumble gets older the number of times he loses his car increases. Dr. Jekyll has collected the following data from security records.

Prof. Bumble’s age # times looses car/year

42 7

43 6

44 5

45 12

46 10

47 16

48 17

49 14

50 21

51 19

52 24

53 22

54 30

55 29

56 34

57 33

58 41

59 42

60 38

a) Is Professor Bumble getting more forgetful with age?

b) What would the prediction be for times forgetting his car that you would make should Prof. Bumble continue to 70 years old?

c) Would the prediction in b) be valid? Why or why not?

d) How much of the variance in times losing car can be accounted for by his age?