Over the years, the mean customer satisfaction rating at a local restaurant has been 92. The restaurant was recently remodeled, and now the management claims the mean customer rating, H, is not equal to 92. In a sample of 68 customers chosen at random, the mean customer rating is 88.2. Assume that the population standard deviation of customer ratings is 14.3. Is there enough evidence to support the claim that the mean customer rating is different from 927 Perform a hypothesis test, using the 0.0S5 level of significance. (a) State the null hypothesis 1, and the alternative hypothesis Osa

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Over the years, the mean customer satisfaction rating at a local restaurant has been 92. The restaurant was recently remodeled, and now the management
claims the mean customer rating, H, Is not equal to 92. In a sample of 68 customers chosen at random, the mean customer rating is 88.2. Assume that the
population standard deviation of customer ratings is 14.3.
Is there enough evidence to support the claim that the mean customer rating is different from 927 Perform a hypothesis test, using the 0.0S level of
significance.
(a) State the null hypothesis H, and the alternative hypothesis H
H 0
Transcribed Image Text:Over the years, the mean customer satisfaction rating at a local restaurant has been 92. The restaurant was recently remodeled, and now the management claims the mean customer rating, H, Is not equal to 92. In a sample of 68 customers chosen at random, the mean customer rating is 88.2. Assume that the population standard deviation of customer ratings is 14.3. Is there enough evidence to support the claim that the mean customer rating is different from 927 Perform a hypothesis test, using the 0.0S level of significance. (a) State the null hypothesis H, and the alternative hypothesis H H 0
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