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:

(a) Find a 96.14% confidence interval for the median, m.
(b) The interval (y1, y7) could serve as a confidence interval for π0.3. Find it and give its confidence coefficient.

Transcribed Image Text:

6.0 6.3 5.0 6.0 5.7 5.9 6.8 5.5 5.4 4.8 5.4 5.8