Under the assumption that the customer ratings using the new menu follow a normal distribution, you will perform a chi-square test. Find X, the value of the test statistic for your chi-square test. Round your answer to three or more decimal places.

A First Course in Probability (10th Edition)
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ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
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Over the years, a sushi restaurant has had a mean customer satisfaction rating of 72.5 with a variance of 24.7. The owner has hired you
to perform a hypothesis test to see if using a new menu will have any effect on the variance, o“. To do so, you survey a random sample of
19 customers who ordered from the new menu. For the customers surveyed, the variance of ratings is 44.3.
Under the assumption that the customer ratings using the new menu follow a normal distribution, you will perform a chi-square test.
Find x, the value of the test statistic for your chi-square test. Round your answer to three or more decimal places.
Transcribed Image Text:Over the years, a sushi restaurant has had a mean customer satisfaction rating of 72.5 with a variance of 24.7. The owner has hired you to perform a hypothesis test to see if using a new menu will have any effect on the variance, o“. To do so, you survey a random sample of 19 customers who ordered from the new menu. For the customers surveyed, the variance of ratings is 44.3. Under the assumption that the customer ratings using the new menu follow a normal distribution, you will perform a chi-square test. Find x, the value of the test statistic for your chi-square test. Round your answer to three or more decimal places.
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