Suppose you are interested in buying a new smart TV and want to find out about differences in prices, sizes, and 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 ? = 0.05, test to see if a difference exists in the average prices of the brands.

b. Using a randomized block ANOVA and ? = 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 ? = 0.05.

d. Verify your results with Excel.

e. Explain the differences in the results from parts a and b.

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Samsung ($) Vizio ($) LG ($) Sony ($) Size 320 43" 500 450 350 49" 450 500 550 400 55" 900 850 900 480 1300 65" 1200 1100 750 75" 1700 1800 2500 1200