Question

19.

The owner of a local convenience store is interested in the average amount spent per shopper at a competing convenience store. To find out, she randomly sampled 49 shoppers and asked how much they spent the last time they went to the competing store. The mean expenditure of the 49 customers was $5.82. Assuming the distribution of spending has a Normal distribution with mean μ and standard deviation σ = $1.11, a 92% confidence interval for μ is:

($5.41, $6.23). ($5.54, $6.10). ($5.59, $6.04). ($5.78, $5.85).

Answer 1

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