Directions Neatly write your responses in the spaces provided. Use a blue or black pen. Don't write in the margins. Remember to complete the submission information on every page you turn in. Free Response : 2 questions, 52 points, 30 minutes 1. Ace Pharmaceutical has developed a drug that it believes will help lower cholesterol and blood pressure at a significantly greater rate than fish oil. Researchers wish to test the new drug and compare the results to those of fish oil and of a placebo. A total of 300 volunteers suffering from hypertension and high cholesterol will participate in the study. A. Explain how you would carry out this test in a completely randomized experiment. (12 points)B. Describe a specific method you could use to randomly assign subjects to groups. (6 points)C. Explain how you could use blocking to modify the design from part A. Be sure to state why you chose the blocking method you did. (6 points)2. Approximately 34 percent of U.S. households own at least one cat. Copyright @ 2021 Apex Learning. See Terms of Use for further information. Images of the TI-84 calculator are used with the permission of Texas Instruments Incorporated. Copyright @ 2011 Texas Instruments Incorporated. AP Statistics Test Page 2 of 3 Planning a Study User Name: Instructor: Date: May 17, 2022 (print clearly) A. Using the random digit table provided below, explain how you would conduct a simulation to estimate the percentage of cat owners among U.S. households. Assume that you will look at 10 households at a time. (8 points) 95911 55241 74053 41002 18096 23370 19411 15586 98282 81306 73024 33198 03846 22199 73312 59593 05126 99863B. Perform your simulation for 10 U.S. households. Run your simulation three times (in other words, run three trials). Make your procedure clear by marking directly on or above the table. State your conclusion. (8 points)3. Kim and Tracy are collecting data for their final project in their psychology class, in which they are conducting a survey about people's overall job satisfaction. They decide to go to the local mall to collect their data. To get a more varied sample, Kim surveys shoppers coming out of store A, a discount clothing store, while Tracy surveys shoppers coming out of store B, a high-end boutique. A. Identify a possible problem with this type of sampling method. (6 points)B. How might Kim and Tracy improve on their sample design so as to get more accurate information from the shoppers at the mall? (6 points)