Readers of a national magazine were asked to rate their satisfaction with 36 restaurant chains in the United States on a scale from 0 to 100. Each chain was then classified as a low-price restaurant (under $16 per person) or a high-price restaurant ($16 or more). Assume that all conditions for the Mann-Whitney test have been met.
Choose the correct null and alternative hypotheses to test the claim that customer satisfaction with low-priced and high-priced restaurant chains differ.
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H0: The median satisfaction for low-priced restaurants is less than the median for high-priced restaurants.
Ha: The median satisfaction for low-priced and high-priced restaurants is the same
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H0: The median satisfaction for low-priced and high-priced restaurants is the same
Ha: The median satisfaction for low-priced restaurants is less than the median for high-priced restaurants
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H0: The median satisfaction for low-priced and high-priced restaurants is the same
Ha: The median satisfaction for low-priced and high-priced restaurants differs
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H0: The median satisfaction for low-priced and high-priced restaurants is the same
Ha: The median satisfaction for low-priced restaurants is greater than the median for high-priced restaurants.
Saguaro National Park in Arizona, part of the Sonoran Desert
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The β conformation of polypeptide chains
The age-adjusted rate of melanoma, a deadly form of skin cancer, from 1973 to 2000. Over that time p