A study is conducted to compare gas mileage for 3 competing brands of gasoline. Four different automobile
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A study is conducted to compare gas mileage for 3 competing brands of gasoline. Four different automobile models of varying size are randomly selected. The data, in miles per gallon, follow. The order of testing is random for each model.(a) Discuss the need for the use of more than a single model of car.(b) Consider the ANOVA from the SAS printout in Figure. Does brand of gasoline matter?(c) Which brand of gasoline would you select? Consult the result of Duncan'stest.
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Gasoline brand в с 35.6 28.6 Model A 32.4 28.8 36.5 34.4 38.7 29.9 37.6 36.2 39.1 37.9
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Related Book For
Probability & Statistics For Engineers & Scientists
ISBN: 9780130415295
7th Edition
Authors: Ronald E. Walpole, Raymond H. Myers, Sharon L. Myers, Keying
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