QUESTION 8 An insurance company proposes two health insurance plans for the employees of a company. Plan A is the basic plan and covers only the medication expenses in case of hospitalization, whereas Plan B reimburses all medical expenses of the employees. As a human ressources manager, you are required to estimate how many employees will opt for Plan B. The manager randomly asks 46 emplyees and 19 of them prefer Plan B. Find the lower confidence Iimite (LCL) of the 98% confidence interval estimate for the population proportion of employees who will prefer Plan B. Round your answer to three decimal places. QUESTION 9 A car insurance company wanted information about the age of its customers. From a sample of 160 randomly selected customers the mean is 44.8 years and a standard deviation is 14.7 years. Find the upper confidence limit (UCL) of the 98% confidence interval for the population mean age. Round your answer to three decinal places. 97.294 QUESTION 10 The waiting time (in minutes) of customers at a fast food outlet is right-skewed. A random sample of 36 customers is selected and the 99% confidence interval for the population mean waiting time is obtained as (1.83,2.33). Find the standard deviation used to construct the 99% condence interval. Round your anser to three decimal places. QUESTION 11 Employees in a company experience distractions (phone calls, emails, unscheduled visits etc.) during their office hours. Given that the distraction times are right skewed with a mean of 95 minutes and a standard deviation of 18 minutes. What is the probability that for a random sample of 36 employees their mean distraction time is more than 89 minutes? 0.9996 0.9772 0.0478 0.6306 4 points Save Answer 3 points save Answer 3 points Save