The accompanying table shows a portion of quarterly data on Nike's revenue for the fiscal years 2001 through 2010. Data for a fiscal year refers to the time period from June 1 through May 31. Theen tired a ta set can be found on the text website, labeled Nike Revenue.
a. Use one-w ay ANOVA to determine if the data provide enough evidence at the 5% significance level to indicate that there are quarterly differences in Nike's revenue.
b. Given your response to part a, does the construction of confidence intervals using Fisher's orTukey's methods provide further information? Explain.