450 Chapter 8 Hypothesis Testing 14. Internet Visits A U.S. Web Usage Snapshot indicated a monthly average of 36 Internet visits a particular website per user from home. A random sample of 24 Internet...

Extracted text: 450 Chapter 8 Hypothesis Testing 14. Internet Visits A U.S. Web Usage Snapshot indicated a monthly average of 36 Internet visits a particular website per user from home. A random sample of 24 Internet users yielded a sample mean of 42.1 visits with a standard deviation of 5.3. At the 0.01 level of significance, can it be concluded that this differs from the national average? Source: New York Times Almanac.