For n = 15 year-2017 model sedans whose horsepower is between 290 and 390, the following measurements give the time in seconds for the car to go from 0 to 60 mph: 4.8, 6.8, 6.0, 5.0, 6.3, 5.7, 5.8, 6.1, 5.5, 6.2, 4.9, 5.4, 5.1, 5.9, 5.6. The interval (Y1, Y7) could serve as a confidence interval for no.25. What is its confidence coefficient?

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For n = 15 year-2017 model sedans whose horsepower is between 290 and 390, the following
measurements give the time in seconds for the car to go from 0 to 60 mph: 4.8, 6.8, 6.0, 5.0, 6.3,
5.7, 5.8, 6.1, 5.5, 6.2, 4.9, 5.4, 5.1, 5.9, 5.6.
The interval (Y1, Y7) could serve as a confidence interval for 1o.25. What is its confidence
coefficient?
Transcribed Image Text:For n = 15 year-2017 model sedans whose horsepower is between 290 and 390, the following measurements give the time in seconds for the car to go from 0 to 60 mph: 4.8, 6.8, 6.0, 5.0, 6.3, 5.7, 5.8, 6.1, 5.5, 6.2, 4.9, 5.4, 5.1, 5.9, 5.6. The interval (Y1, Y7) could serve as a confidence interval for 1o.25. What is its confidence coefficient?
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