Question: A random sample of 100 households located in a large city recorded the number of people living in the household, Y, and the monthly expenditure

A random sample of 100 households located in a large city recorded the number of people living in the household, Y, and the monthly expenditure for food, X. The following summary statistics are given.

(a) Form a 95% confidence interval for the mean number of people living in a household in this city.
(b) Form a 95% confidence interval for the mean monthly food expenses.
(c) For each case just given, interpret the results and state any assumptions you have made.

y,340 D1-1650 yi-40,000 -44,000,000 100 Yi = 100 100 100 -1

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