Suppose Consumer Reports would like to conduct a study comparing
Suppose Consumer Reports would like to conduct a study comparing the prices of televisions made by different ­manufacturers. The following data show the prices of a random sample of televisions for various screen sizes. These data can also be found in the Excel file Consumer Reports.xlsx.
a. Using a one way ANOVA and α = 0.05, test to see if a difference exists in the average prices of the brands.
b. Using a randomized block ANOVA and α = 0.05, test to see if a difference exists in the average prices of the brands.
c. If warranted, determine which pairs of television brands are different using α = 0.05.
d. Verify your results with Excel. e. Explain the differences in the results from parts a and b.
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