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"It is claimed that a car is driven on the average less than 24700 kilometers per year with a population standard deviation of 2900 kilometers. A company wants to test if their current car model is on par with this average. To test this, a random sample of 86 cars from the company were tested. Suppose you are an analyst of the company, would you suggest to make improvements in your car design if the random sample showed an average of 26300 kilometers? Use a 0.1 level of significance." I will assume that the cars are on par with the average and recommend to do nothing.

"It is claimed that a car is driven on the average less than 24700 kilometers per year with a population standard deviation of 2900 kilometers. A company wants to test if their current car model is on par with this average. To test this, a random sample of 86 cars from the company were tested. Suppose you are an analyst of the company, would you suggest to make improvements in your car design if the random sample showed an average of 26300 kilometers? Use a 0.1 level of significance." I will assume that the cars are on par with the average and recommend to do nothing.

Calculus For The Life Sciences
Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter13: Probability And Calculus
Section13.2: Expected Value And Variance Of Continuous Random Variables
Problem 10E
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Question 5 "It is claimed that a car is driven on the average less than 24700 kilometers per year with a population standard deviation of 2900 kilometers. A company wants to test if their current car model is on par with this average. To test this, a random sample of 86 cars from the company were tested. Suppose you are an analyst of the company, would you suggest to make improvements in your car design if the random sample showed an average of 26300 kilometers? Use a 0.1 level of significance." A I will assume that the cars are on par with the average and recommend to do nothing. I would recommend an improvement to the car design to improve performance. I will be certain that there is no need to improve the car design based on the result. There is no sufficient data to make a sound conclusion.
Transcribed Image Text:Question 5 "It is claimed that a car is driven on the average less than 24700 kilometers per year with a population standard deviation of 2900 kilometers. A company wants to test if their current car model is on par with this average. To test this, a random sample of 86 cars from the company were tested. Suppose you are an analyst of the company, would you suggest to make improvements in your car design if the random sample showed an average of 26300 kilometers? Use a 0.1 level of significance." A I will assume that the cars are on par with the average and recommend to do nothing. I would recommend an improvement to the car design to improve performance. I will be certain that there is no need to improve the car design based on the result. There is no sufficient data to make a sound conclusion.
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