Question

Gasoline Brands 21 20 24 30 Automobiles 29 25 23 24 24 20 a. At a- 05, is there a significant difference in the mean miles-per-gallon chaacteris- tics of the three brands of gasoline? b. Analyze the experimental data using the ANOVA procedure for completely random- ized designs. Compare your findings with those obtained in part (a). What is the advantage of attempting to remove the block effect? A research firm tests the miles-per-gallon characteristics of three brands of gasoline. Be- cause of different gasoline performance characteristics in different brands of automobiles five brands of automobiles are selected and treated as blocks in the experiment; that is. each brand of automobile is tested with each type of gasoline. The results of the experiment (in miles per gallon) follow. 40.

Answer 1

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