Question 7. a. A zoologist on safari is able to capture and release 40 male African lions. The average weight of the li

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Question 7.a. A zoologist on safari is able to capture and release 40male African lions. The average weight of the lions was 438pounds with standard deviation of 27.3 pounds. Using thisdata, find the 90% confidence interval for the average weight ofall African lions. Round to 1 decimal place. Show yourwork.b.
Chris is going to start a roofing company and want to be sure hecharges his customers a competitive rate. To accomplish this,he gets 11 bids from local roofing companies for a 2000 square-footroof. The average cost for a roof from the bids was $4,500with standard deviation of $750. Find the 95% confidenceinterval for the average cost for a 2000 sq-ft roof. Roundanswer to nearest dollar. Show your work.
What do you think would be a good price for Chris to charge fora 2000 sq-ft roof?