You want to estimate how much a typical Georgia family is spending on groceries weekly, now that most restaurants are offering only carry-out or delivery due to COVID-19. You take a random sample of...

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Extracted text: You want to estimate how much a typical Georgia family is spending on groceries weekly, now that most restaurants are offering only carry-out or delivery due to COVID-19. You take a random sample of 31 families in Clayton County, finding a mean grocery bill of $153.60, with a standard deviation of $32.45. a) Which type of interval should you use? (z-interval or t-interval)? b) You want to estimate the mean amount Georgia families are spending on groceries (weekly), with 99% confidence. What critical value should you use? (give to 3 decimal places) c) Estimate the mean amount Georgia families are spending weekly on groceries, with 99% confidence. The interval is (round numbers to 2 decimal places): A < h="">