= Homework: MATH 202 Homework 6 Question 5, 8.2.12 HW Score: 34%, 34 of 100 points Points: 0 of 9 Save A manufacturer kn

[answerhappygod]

Homework Math 202 Homework 6 Question 5 8 2 12 Hw Score 34 34 Of 100 Points Points 0 Of 9 Save A Manufacturer Kn 1 (93.48 KiB) Viewed 63 times

= Homework: MATH 202 Homework 6 Question 5, 8.2.12 HW Score: 34%, 34 of 100 points Points: 0 of 9 Save A manufacturer knows that the number of items produced per hour by machine A and by machine B are normally distributed with a standard deviation of 4.3 items for machine A and a standard deviation of 6.7 items for machine B. The mean hourly amount produced by machine A for a random sample of 56 hours was 225 units; the mean hourly amount produced by machine B for a random sample of 44 hours was 213 units. Find a 99% confidence interval for the difference in mean parts produced per hour by these two machines. The confidence interval is <My - My (Round to four decimal places as needed)