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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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
f) What is your conclusion?
your
decision?
Transcribed Image Text: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 f) What is your conclusion? your decision?
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