Car Thefts 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. Since the population of various cities in the united states varies, you decide to use rates per 10,000 people. Your boss said that last year the rate per 10,000 people was 44 vehicles. You want to see if it has changed. The followings are rates per 10,000 people for 45 randomly selected locations in the united states. Assume σ = 30.3 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 70 56 23 116 18 20 75 38 15 Using this information, answer these questions. What hypotheses would you use? What assumption must be met before the hypothesis test can be conducted? Would you select a one- or a two-tailed test? Why? What critical value(s) would you use? Conduct a hypothesis test. What is your decision? What is your conclusion? Write a brief statement summarizing your conclusion.
Unitary Method
The word “unitary” comes from the word “unit”, which means a single and complete entity. In this method, we find the value of a unit product from the given number of products, and then we solve for the other number of products.
Speed, Time, and Distance
Imagine you and 3 of your friends are planning to go to the playground at 6 in the evening. Your house is one mile away from the playground and one of your friends named Jim must start at 5 pm to reach the playground by walk. The other two friends are 3 miles away.
Profit and Loss
The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.
Units and Measurements
Measurements and comparisons are the foundation of science and engineering. We, therefore, need rules that tell us how things are measured and compared. For these measurements and comparisons, we perform certain experiments, and we will need the experiments to set up the devices.
Car Thefts
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. Since the population of various cities in the united states varies, you decide to use rates per 10,000 people. Your boss said that last year the rate per 10,000 people was 44 vehicles. You want to see if it has changed. The followings are rates per 10,000 people for 45 randomly selected locations in the united states. Assume σ = 30.3
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What hypotheses would you use?
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What assumption must be met before the hypothesis test can be conducted?
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Would you select a one- or a two-tailed test? Why?
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What critical value(s) would you use?
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Conduct a hypothesis test.
- What is your decision?
- What is your conclusion?
- Write a brief statement summarizing your conclusion.
- If you lived in a city whose population was about 50.000, how many automobile thefts per year would you expect to occur?
This is a single question as you can see. Please answer all the parts, 1 to 9. Thanks.
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