Has usage of the Internet increased? Very likely, more people are using the Internet than in the

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Has usage of the Internet increased? Very likely, more people are using the Internet than in the past, especially from home. But if a person has been using the Internet all along, are they are now spending more time on it? The table in the margin shows results from three independent surveys, conducted in 1997, 1998, and 1999; the specific values are the hours that respondents spend per week on the Internet. Use the 0.05 significance level to test the claim that the three samples come from identical populations.
Has usage of the Internet increased? Very likely, more people

Use the Kruskal-Wallis test.

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Elementary Statistics

ISBN: 9780321225979

3rd Canadian Edition

Authors: Mario F. Triola

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