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    Inferential Tests on Internet Usage at Home

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    Question: An analyst working at BC Statistics is compiling a report on the use of the internet at home. In 1997, 250 randomly selected people were asked about the average amount of time spent on the internet per week. The same 250 people were re-surveyed in June 2000. Which test should the analyst to determine whether the home use of the internet has increased significantly between 1997 and 2000?

    a. two sample t-test with directional hypotheses
    b. paired t-test with non-directional hypotheses
    c. paired t-test with directional hypotheses
    d. two sample Kolmogorov-Smirnov Goodness of Fit test.

    Could you provide me with the correct answer and also briefly explain why it is the correct answer? I am having some trouble understanding this material. Thanks you.

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    Solution Preview

    21. c. paired t-test with directional hypotheses

    Why? it is the best answer because it is comparing two groups, sot ht t-test is used. ...

    Solution Summary

    For one multiple choice question on inferential tests, this solution provides the correct answer and also briefly explains why it is the correct answer. It also provides a guide to refer to for these questions.