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Customers at Costco spend an average of $130 per trip The Wall Street Journal October 6, 2010). One of Costcos rivals would like to determine whether Costcos customers spend more per trip

Customers at Costco spend an average of $130 per trip (The Wall Street Journal, October 6, 2010). One of Costco's rivals would like to determine whether Costco's customers spend more per trip. A survey of the receipts of 25 customers found that the sample mean was $135.25. Assume that the population standard deviation of spending is $10.50 and the spending follows a normal distribution (use the significance level 0.07).

Round your solutions for this Exhibit to 4 digits.

Question 26

1 pts

Refer to the Exhibit Costco Customers.

Provide the null and the alternative hypotheses.

Question 27

0.5 pts

Refer to the Exhibit Costco Customers.

Compute the test statistic.

Question 28

1 pts

Refer to the Exhibit Costco Customers.

Calculate the p-value for the test.

Question 29

1 pts

Refer to the Exhibit Costco Customers.

State your conclusion for the test using the p-value.

A. p-value < 0.07,="" so="" we="" cannot="" reject="" ho.="" therefore,="" there="" is="" not="" enough="" evidence="" to="" conclude="" that="" costco&#39;s="" customers="" spend="" more="" than="" $130="" per="">

B. p-value < 0.07,="" so="" we="" reject="" ho.="" therefore,="" there="" is="" not="" enough="" evidence="" to="" conclude="" that="" costco&#39;s="" customers="" spend="" more="" than="" $130="" per="">

C. p-value < 0.07,="" so="" we="" cannot="" reject="" ho.="" therefore,="" there="" is="" enough="" evidence="" to="" conclude="" that="" costco&#39;s="" customers="" spend="" more="" than="" $130="" per="">

D. p-value < 0.07,="" so="" we="" reject="" ho.="" therefore,="" there="" is="" enough="" evidence="" to="" conclude="" that="" costco&#39;s="" customers="" spend="" more="" than="" $130="" per="">

Apr 06 2020 View more View Less

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