An Internet Service Provider Is Interested in Testing to See

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.