2. The average time it takes to take a stats test is 1.13 hours. I wish...

2. The average time it takes to take a stats test is 1.13 hours. I wish to test to see if the last 8 exams had a time that was different from normal. The average time to do the 8 exams was 1.2 hours with a standard deviation of .4 hours.

a) At the .05 level did the last exams take times that were of different length (p = .64)

b) Interpret the p-value

c) Find and interpret the 95% confidence interval (computer gives” .866- 1.534”)

d) If I take another of 8 exams would an average time of 1.3 hours be something I would expect to get? Explain

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Expert Solution

orchestra answered 1 year ago

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