It has been found that the average time internet users spend online per week is 18.3 hours.
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Question:
It has been found that the average time internet users spend online per week is 18.3 hours. A random sample of 48 teenagers indicated that their mean amount of internet time per week was 20.9 hours with a population variance of 32.49. At the 0.02 level of significance. can it be concluded that the mean time differs from 18.3 hours per week?
Related Book For
Statistics for Business and Economics
ISBN: 978-0132930192
8th edition
Authors: Paul Newbold, William Carlson, Betty Thorne
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