A “Survey of Home Buyer Preferences” was conducted by the National Association of Home Builders to determine the features that home buyers really want. Respondents were to rate which features were desirable and/or essential. The following table shows the results.
It is not surprising that the ratings in the “Desirable” column of the table are considerably higher than the ratings in the “Essential” column. There is no question about there being a difference in the ratings; however, an appropriate question is, “Do the items on the list appear in the same order of preference in both columns?”
a. Use the Mann–Whitney U test to test the hypothesis that the items follow essentially the same distribution, using a = 0.05
b. Use the Spearman rank correlation coefficient to test the hypothesis that the rankings of the items are not correlated, using a = 0.05
c. State your conclusion.

  • CreatedAugust 28, 2015
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