Refer to the study described in Exercise 14 8 Use Tukey s
Refer to the study described in Exercise 14.8. Use Tukey’s W procedure to identify sig-nificant differences in the means.
a. Use Tukey’s W procedure to identify significant differences in the mean attention spans of the three age groups of children.
b. Use Tukey’s W procedure to identify significant differences in the mean attention spans for the types of products.
c. Are your conclusions in part (a) the same for both types of products?
In exercise
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