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: Which of the following would be the correct alternative hypotheses for the test to be conducted?

A) H0 : μ1 = μ2 = μ3
B) H0 : μ1 ≠ μ2 ≠μ3
C) Not all population means are equal.
D) σ1 = σ2 = σ3 = σ4