A marketing research firm wishes to compare the prices charged by two supermarket chains-Miller's and Albert's The resea

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A Marketing Research Firm Wishes To Compare The Prices Charged By Two Supermarket Chains Miller S And Albert S The Resea 1 (26.29 KiB) Viewed 54 times

A marketing research firm wishes to compare the prices charged by two supermarket chains-Miller's and Albert's The research firm using a standardized one week shopping plan grocery list), makes identical purchases at 10 of each chains stores. The stores for each chain are randomly selected, and all purchases are made during a single week. It is found that the mean and the standard deviation of the shopping expenses at the 10 Miller's stores are a = $113,09 and 1.51. It is also found that the mean and the standard deviation of the shopping expenses at the 10 Albert's stores are I3 = $107.57 and 52.48 (a) Calculate the value of the test statistic (Do not round intermediate calculations, Round your answer to 2 decimal places) Ints Book Print Test statistic Herences (b) Calculate the critical value (Round your answer to 2 decimal places.) Critical value