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kindly answer both questions

Question 7 (1 point) Kumar pharmacy would like to reduce the margin of error to $0.50 using the same confidence level and standard deviation as the previous question. How large a sample should they choose? Your Answer: Answer Question 8 (4 points) Mukul Kumar manager of the costal wildfire region of the BC Wildfire Service would like to test the response time from its wildfire attack base in Cobble Hill. The service conducted a series of 28 drills to serve as a representative sample. They found that the mean response time was 64 minutes with a standard deviation of 17 minutes. Last season, the average response time was 75 minutes. At the 5% significance level is there enough evidence to conclude the response time has decreased? Answer 222222 for this on the quiz and give the full hypothesis test on your written work that you will submit to the online exam folder. Question 6 (3 points) Kumar Pharmacy in Duncan has begun to use drones to deliver prescription medications to Saltspring Island. They would like to determine their cost per delivery. They take a sample of 21 deliveries and find that the average cost per delivery is $17.00 with a standard deviaiton of $6. Give the 95% interval estimate for the true average cost of delivering prescriptions. Answer this question on the work you will submit. Just enter 0 for the answer on th quiz. Your Answer: Answer Question 7 (1 point) Kumar pharmacy would like to reduce the margin of error to $0.50 using the same confidence level and standard deviation as the previous question. How large a sample should they choose