O examine the association between age and IQ (intelligence quotient) of a group of children admitted in a specialised hospital a researcher collected the following data from 15 participants: Age

12

14

15

16

13

11

12

10

15

14

13

12

11

10

14

IQ

72

78

82

90

74

69

75

68

90

85

78

70

65

64

85

Compute the increase in IQ for every one-year increase in age. Consider that this dataset fulfills all the assumptions of linear regression.

Put the value in two decimal points (note: please don’t type any text, only type the digits up to two decimal places).