MATH 221 WEEK 5 QUIZ

MATH 221 -WEEK 5 QUIZ Statistics For Decision Making- Already Graded A Dernier document publié:   de cela

(CO 4) From a random sample of 68 businesses, it is found that the mean time that employees spend on personal issues each week is 5.8 hours with a standard deviation of 0.35 hours. What is the 95% confidence interval for the amount of time spent on personal issues? (CO 4) From a random sample of 85 teens, it is found that on average they spend 31.8 hours each week online with a population standard deviation of 5.91 hours. What is the 90% confidence interval for the amount of time they spend o...