Posted by **Vivian** on Saturday, July 28, 2012 at 12:18pm.

At one school, the average amount of time that tenth-graders spend watching television each week is 18.4 hours. The principal introduces a campaign to encourage the students to watch less television. One year later, the principal wants to perform a hypothesis test to determine whether the average amount of time spent watching television per week has decreased. Formulate the null and alternative hypotheses for the study described.

- Hypothesis - Statistics -
**MathGuru**, Saturday, July 28, 2012 at 7:36pm
Null:

Ho: µ = 18.4 -->population mean is equal to 18.4

Alternative:

Ha: µ < 18.4 -->population mean is less than 18.4

- Hypothesis - Statistics -
**sean**, Wednesday, April 17, 2013 at 11:50pm
At one high school, the average amount of time tenth-graders spend watching television each week is The principal introduces a campaign to encourage the students to watch less television. One year later, the principal wants to perform a hypothesis test to determine whether the average amount of time spent watching television per week has decreased.

## Answer this Question

## Related Questions

- Hypothesis Statistics - At one school, the average amount of time that tenth-...
- STATISTIC - Mrs. Carlson has discovered that the students in her class who watch...
- statistics - To determine how many hours per week freshmen college students ...
- statistics - A sample of 400 high school students showed that they spend an ...
- math... - Julia is allowed to watch no more than 5 hours of television a week. ...
- math - Last week, Charles spent 2 hours watching television. Madoline watched ...
- statistics - The amount of time spent by North American adults watching ...
- Statistics - Professor York randomly surveyed 240 students at Oxnard University...
- Statistics - The American Academy of Pediatrics (AAP) recommends that kids 2-5 ...
- math - A recent survey shows that the average man will spend 141,288 hours ...

More Related Questions