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Statistics / Probability and Statistical Inference 9 / Chapter 7.5 / Problem 7.5-2

Probability and Statistical Inference | 9th Edition | ISBN: 9780321923271 | Authors: Robert V. Hogg, Elliot Tanis, Dale Zimmerman

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For n = 12 year-2007 model sedans whose horsepower is between 290 and 390, the following

Chapter 7, Problem 7.5-2

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QUESTION:

For n = 12 year-2007 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: 6.0 6.3 5.0 6.0 5.7 5.9 6.8 5.5 5.4 4.8 5.4 5.8 (a) Find a 96.14% confidence interval for the median, m. (b) The interval (y1, y7) could serve as a confidence interval for 0.3. Find it and give its confidence coefficient.

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QUESTION:

For n = 12 year-2007 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: 6.0 6.3 5.0 6.0 5.7 5.9 6.8 5.5 5.4 4.8 5.4 5.8 (a) Find a 96.14% confidence interval for the median, m. (b) The interval (y1, y7) could serve as a confidence interval for 0.3. Find it and give its confidence coefficient.

ANSWER:

Step 1 of 4

(a)

We write the measurements in the increasing order

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