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...

Please see picture. Need this asap please and thank you. Just need parts d e f

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)?


Extracted text: d) Interpret your interval in simple language in context of the problem. (your answer should be longer than the text box, just keep typing) e) Should you trust the results of your confidence interval? Explain! (hint: are all the necessary conditions for inference met?) f) What would happen to your interval if you had calculated a 95% confidence interval instead of 99%? Would it get wider, narrower, or stay the same?