SOLUTION: Label each of the following situations “P” if it is an example of parametric data or “NP” if it is an example of nonparametric data. Mel’s Diner has been surveying their custome

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Question 140961: Label each of the following situations “P” if it is an example of parametric data or “NP” if it is an example of nonparametric data.
Mel’s Diner has been surveying their customers for the past couple of years about their dining experience in the restaurant. The survey uses a scale of one to five, five being best to indicate customer satisfaction. Mel’s customer satisfaction averaged 2.5 last year, but this year it is 2.9. Is this difference statistically significant? ____

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
The data is rankings; use a non-parametric test.
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Cheers,
Stan H.