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A national grocer’s magazine reports the typical shopper

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A national grocer’s magazine reports the typical shopper spends 10 minutes in line waiting to check out. A sample of 23 shoppers at the local Farmer Jack’s showed a mean of 9.4 minutes with a standard deviation of 2.2 minutes.

Is the waiting time at the local Farmer Jack’s less than that reported in the national magazine? Use the 0.050 significance level.

a. What is the decision rule? (Negative amount should be indicated by a minus sign. Round your answer to 3 decimal places.)

Reject H0: µ ≥ 10 when the test statistic is less than/greater than/ or equal to _______.

b. The value of the test statistic is . (Negative amount should be indicated by a minus sign. Round your answer to 3 decimal places.)

c. What is your decision regarding H0? Reject or Do not reject

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