Question: What is the average difference between the price of name-brand soup and the price of store-brand soup? To obtain an estimate, an analyst randomly samples

What is the average difference between the price of name-brand soup and the price of store-brand soup? To obtain an estimate, an analyst randomly samples eight stores. Each store sells its own brand and a national name brand. The prices of a can of name-brand tomato soup and a can of the store-brand tomato soup follow.

Construct a 90% confidence interval to estimate the average difference. Assume that the differences in prices of tomato soup are normally distributed in thepopulation.

Store Name Brand Store Brand 490 50 52 51 50 56 47 540 59 53 54. 61 51 53

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