Open Weight_vs_IQ data.

SETUP: Is it reasonable to assume that the IQ and weight of a person should not be related? Given the data, your job is to check if this assertion is indeed reasonable or not. HINT: Read Lecture 24.

19. What would be the correct Null-Hypothesis?

a. IQ and Weight should not be related.

b. The population averages are equal.

c. The slope of the regression line is equal to zero.

d. None of these

20. TheP-value is 0.74. What can be statistically concluded?

a. We reject the Null Hypothesis.

b. We accept the Null Hypothesis.

c. We cannot reject the Null Hypothesis.

d. None of these

21. Add one-line additional comment.

a. We cannot conclude that IQ and Weight have different averages.

b. We are confident that IQ and Weight are related.

c. We cannot conclude that IQ and Weight are related.

d. None of these

Weight IQ 88 99 112 103 107 97 112 99 80 100 86 90 103 118 121 79 116 80 82 88 65 82 107 103 100 116 91 112 110 92 113 115 105 100 108 94 90 118 73 106 102 126 99 95 80 119 114 116 90 79 95 92 106 78 86 111 106 80