Question 11 24 pts The overnight shipping business has skyrocketed in the last ten years. The single greatest predictor of a company's success has been proven time and again to be customer of service. A study was conducted to study the customer satisfaction level for one overnight shipping business. In addition o the customer's satisfaction level, the customers were asked how often they used overnight shipping. The results are shown below in the following table. Satisfaction Level Frequency of Use High Medium Low Total 5 per month 70 25 5 100 Total 460 220 20 700 A. If one of the people is selected at random, find the probability that the selected individual used the overnight shipping business 2 r 5 times per month. Round to the nearest thousandth. B. Of one of the people is selected at random, nd the probability that the person had a high satisfaction level or used the overnight shipping business less than 2 times per month. Round to the nearest thousandth. C. If one of the people is selected at random, find the probability that the person used the overnight shipping business more than 5 times per month given that the individual has a medium satisfaction level. Round to the nearest thousandth. D. If one of the people is selected at random, find the probability that the person had a high or low satisfaction level. Round to the nearest thousandth. Question 12 18 pts The weekly salaries of teachers in one state are normally distributed with a mean of $490 and a standard deviation of $45 Use this information to answer the following questions regarding salaries of teachers. A. What is the probability that the weekly salary of any randomly selected teacher is less than $425? B. Find Q3. C. If we were to randomly select 30 teachers' weekly salaries, what's the probability that the average weekly salary for the sample would exceed $470