An Internet Service Provider Is Interested in Testing to See

question 111

Multiple Choice

An Internet service provider is interested in testing to see if there is a difference in the mean weekly connect time for users who come into the service through a dial-up line, DSL, or cable Internet. To test this, the ISP has selected random samples from each category of user and recorded the connect time during a week period. The following data were collected: Based upon these data and a significance level of 0.05, which of the following statements is true?

• A) The F-critical value for the test is 3.555
• B) The test statistic is approximately 43.9
• C) The null hypothesis should be rejected and conclude that the mean connect times for the three user categories are not all equal.
• D) All of the above are true.

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