A Researcher Designs a Study to Measure Whether Receiving a Free

question 9

Multiple Choice

A researcher designs a study to measure whether receiving a free season pass to a beautiful ski resort near Bountiful, Utah, increases the number of days a subject who has lived in the area for 1 to 3 years skis during the season. An independent samples t-test of correlation is used to measure the effect of receiving a season pass upon number of ski days. If, instead, the researcher decided to measure the subjects' responses by asking them to check one of these four replies on a survey, "Much more often than last year," "More often than last year," "Just about the same as last year," or "Less often than last year," why would the independent samples t-test have to be abandoned for a Mann-Whitney U test instead?

• A)The variable of free season pass versus daily pay is measured at the nominal instead of the ratio level.
• B)The variable of free season pass versus daily pay is now measured at the ordinal instead of ratio level.
• C)The variable amount skied is now measured at the nominal level instead of the ratio level.
• D)The variable amount skied is now measured at the ordinal level instead of the ratio level.
• E)Both variables' levels have changed.
• F)The independent samples t-test used demands ratio-level or interval-level data.
• G)The Mann-Whitney U test allows for ordinal level values, but not nominal.

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