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Can you help with me Problem 96E and Problem 63? I'm not sure where to start. I want to know how to solve them. Problem
Can you help with me Problem 96E and Problem 63? I'm not sure where to start. I want to know how to solve them.
Problem 96E Motivation of drug dealers. Refer to the Applied Psychology in Criminal Justice (Sept. 2009) study of the personalitycharacteristics of convicted drug dealers, Exercise 5.15(p. 251). A random sample of 100 drug dealers had a mean Wanting Recognition (WR) score of 39 points, with a standarddeviation of 6 points. The researchers also are interestedin 62, the variation in WR scores for all convicteddrug dealers. a. Identify the target parameter, in symbols and words. b. Compute a 99% confidence interval for 62. c. What does it mean to say that the target parameter lieswithin the interval with "99% confidence"? d. What assumption about the data must be satisfied in order for the confidence interval to be valid? e. To obtain a practical interpretation of the interval, part b, explain why a confidence interval for the standard deviation, o, is desired. f. Use the results, part b, to compute a 99% confidence interval for o . Give a practical interpretation of the interval.Problem 63 Easy Difculty Refer to the Harvard School of Public Health survey to determine the size and composition of privately held firearm stock in the United States, presented in Exercise 3.85 (p. 183). Recall that, in a representative household telephone survey of 2,770 adults, 26% reported that they own at least one gun (Injury Prevention, Jan. 2007). The researchers want to estimate the true percentage of adults in the United States that own at least one gun. a. Identify the population of interest to the researchers. b. Identify the parameter of interest to the researchers. c. Compute an estimate of the population parameter. d. Form a 99% confidence interval around the estimate. e. Interpret the confidence interval practically. f. Explain the meaning of the phrase "99\\% confident."Step by Step Solution
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