Question 4 A researcher wants to know how long it takes, on average, for a certain species of bacteria to divide. She watches 18 cells through a microscope and times how long it takes them to divide. She obtains the following data, in hours: 5.3, 5.4, 6.5, 5.9, 6.9, 5.9, 6.5, 7.4, 6.5, 7.5, 7.8, 6.9, 6.1, 6.1, 6.2, 7.7, 6.6, 7.4 Assuming the population standard deviation is o = 0.7, construct a 89% confidence interval for the average time it takes this species of bacteria to divide. I = N Q Z a Margin of Error: E = We are 89% confident that this species of bacteria takes, on average, between hours and hours to divide. Submit