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(Solution) - At Burger Joint consistency in product and service is the

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At Burger Joint, consistency in product and service is the new motto. Accordingly, management has invested in an automated French-fry dispenser to replace the manual dispensing method. The goal is to standardize the number of fries provided. The accompanying table shows the number of fries dispensed in a large-sized container based on samples of 10 orders before and after the process change. Assume these samples were drawn randomly and independently from normally distributed populations.

a. Develop the hypotheses to test whether the variance of the new automated dispensing method is lower than the previous manual method.
b. Use Excel's F.TEST function to calculate the p-value.
c. Would your conclusion change at the 1% significance level?

 







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This question was answered on: Jul 11, 2017

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