You recently received a job with a company that manufactures an automobile antitheft device. To conduct an advertising campaign for the product, you need to make a claim about the number of automobile thefts per year. Your boss said that last year the theft rate was 44 vehicles. You want to see if it has changed this year. The following are rates for 36 randomly selected locations in the United States. 55 42 125 62 134 73 39 69 23 94 73 24 51 55 26 66 41 67 15 53 56 91 20 78 70 25 62 115 17 36 58 56 33 75 20 16 a)calculate mean and standard b)Would you select a one- or two-tailed test? Why? c) What critical value(s) would you use at d) Conduct a hypothesis test. Use s 30.3. 8. e). What is your decision? f) What is your conclusion?
You recently received a job with a company that manufactures an automobile antitheft device. To conduct an advertising campaign for the product, you need to make a claim about the number of automobile thefts per year. Your boss said that last year the theft rate was 44 vehicles. You want to see if it has changed this year. The following are rates for 36 randomly selected locations in the United States. 55 42 125 62 134 73 39 69 23 94 73 24 51 55 26 66 41 67 15 53 56 91 20 78 70 25 62 115 17 36 58 56 33 75 20 16 a)calculate mean and standard b)Would you select a one- or two-tailed test? Why? c) What critical value(s) would you use at d) Conduct a hypothesis test. Use s 30.3. 8. e). What is your decision? f) What is your conclusion?
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.4: Collecting Data
Problem 3E
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