Question: Following are summary statistics from Exercise 16.60 on IQ for samples of children at age 71/2-8 years who were born preterm. The researchers used the

Following are summary statistics from Exercise 16.60 on IQ for samples of children at age 71/2-8 years who were born preterm. The researchers used the following designations. Group I: mothers declined to provide breast milk; Group IIa: mothers had chosen but were unable to provide breast milk; and Group IIb: mothers had chosen and were able to provide breast milk. Use a family confidence level of 0.99. Here qÎ± = 4.15.
Perform a Tukey multiple comparison at the specified family confidence level. Note: We have provided values of qa not given in Table IX or X

Group nj Sj Ila 11b 90 92.8 15.2 17 94.8 19.0 193 103.7 15.3

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