Questions 1 – 3 refer to the histogram below which shows the final exam scores of a sample of students. Questions 1 – 6. Write your answer and explanation in space provided. Answer and Explanation 1. What percentage of the students scored below 70? 2. Is 60 a possible value of the median for the exam scores? 3. What is the shape of this distribution? Questions 4 – 6 refer to the boxplots below which display midterm exam scores for all students in two different sections of the same course. [Note. These questions are not connected to Q 1-3.] For each of the following questions, write the letter of your answer AND explain why you think that is the correct answer (Answers with no explanation will not receive credit) A) Section A B) Section B C) Both sections are about equal D) It is impossible to tell Answer and Explanation 4. Which section has more students? 5. Which section has a greater percentage of students with scores at or above 80? 6. Which section has a greater percentage of students with scores at or above 55? Questions 7 – 10: In addition to answering the following questions, show your work and/or explain how you arrived at your answer. [If you’re not sure what is required, look at the answers to Week 8’s homework to get an idea of what to include in your answer.] 7. At a large department store, the average number of years of employment for a cashier is 3.6 with a standard deviation of 1.4 years, and the distribution is approximately normal. If an employee is picked at random, what is the probability that the employee has worked at the store for more than 5 years? 8. The amount of time necessary for assembly line workers to complete a product is a normal random variable with a mean of 22 minutes and a standard deviation of 3 minutes. The probability is ________ that a product is assembled in between 15 and 19 minutes. 9. The amount of time necessary for assembly line workers to complete a product is a normal random variable with a mean of 22 minutes and a standard deviation of 3 minutes. According to the Standard Deviation Rule, almost all (99.7%) of the products will be completed between _____minutes and _____ minutes. 10. The amount of time necessary for assembly line workers to complete a product is a normal random variable with a mean of 22 minutes and a standard deviation of 3 minutes. The probability is .33 that a product is completed in less than _____ minutes.