Question: A grocery store chain has decided to help customers save money by instituting temporary repricing to help cut costs. Nine products from the sale flyer

A grocery store chain has decided to help customers save money by instituting €œtemporary repricing€ to help cut costs. Nine products from the sale flyer are featured below with their regular price and their €œtemporary€ new price. Using the paired sample sign test and Î± = 0.05, is there evidence of a difference in price? Comment on your results.

Follow this procedure:
a. State the hypotheses and identify the claim.
b. Find the critical value(s).
c. Compute the test value.
d. Make the decision.
e. Summarize the results.
Use the traditional method of hypothesis testing unless otherwise specified.

Old 2.59 0.69 1.29 3.10 1.89 2.05 1.58 2.75 199 Ne 2.09 0.70 1.18 2.95 1.59 1.75 1.32 2.19 1.99

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