Repeat Exercise 1 for the mean IQs of the various educational levels of the subjects.

Data from in Exercise 1

From the Data Bank, select a random sample of subjects, and test the hypothesis that the mean cholesterol levels of the nonsmokers, less-than-one pack- a-day smokers, and one-pack-plus smokers are equal. Use an ANOVA test. If the null hypothesis is rejected, conduct the Scheffé test to find where the difference is. Summarize the results.

Transcribed Image Text:

Data Bank ID number 01 02 03 04 05 06 07 08 09 10 11 12 13 14 Age 24 27 2 1 18 1 0 32 2 0 2 0 1 2 1 0 1 2 2 1 1 0 1 1 3 1 2 2 0 1 2 0 19 56 Educational level 65 36 43 47 48 25 63 37 Smoking status Exercise 1 1 Weight 120 145 118 162 106 143 160 215 127 132 196 0 1 0 0 0 0 1 1 2 3 0 3 187 109 170 Serum cholesterol 193 210 Systolic pressure 199 210 126 120 128 129 01 196 208 188 119 106 206 136 111 240 131 99 215 163 106 201 132 111 215 138 109 148 115 115 114 Sodium 118 136 M 105 137 M S 115 135 F M 108 142 M M 133 F 138 F 140 M 151 M 134 F 135 F 242 149 101 193 142 109 Gender 146 141 152 144 LL S W W D M D M D F S F D M M Marital status