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In Exercises 16.106-16.109, use Procedure 10.2 on page 721 to 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.
16.106 Breast Milk and IQ. 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 lib; mothers had chosen and were able to provide breast milk. Use a family confidence level of 0.99. Here qα =4.15.
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