Refer to the study described in Exercise 14.11.
a. Use Tukey€™s W procedure to identify significant differences in the mean sensory ratings of the three levels of percentage of milk fat.
b. Use Tukey€™s W procedure to identify significant differences in the mean sensory ratings of the three levels of percentage of air.
c. Which combination of percentage of milk fat, air, and sweetener appears to yield the highest mean sensory rating?
In exercise

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