Hypothesis testing of a single meanhrs/wk watching tv
This activity offers students direct experience with the 4 steps involved in hypothesis testing for the population mean:
 State the appropriate null and alternative hypotheses, Ho and Ha.
 Obtain a random sample, collect relevant data, and check whether the data meet the conditions under which the test can be used. If the conditions are met, summarize the data by a test statistic.
 Find the pvalue of the test.
 Based on the pvalue, decide whether or not the results are significant and draw your conclusions in context.^{[1]}
Inference for the mean of a population
Use this activity for inclass collaborative group work.
Estimate for completion time: 45 minutes, with data collection occurring as students arrive for class.
Materials needed:
 4step hypothesis testing template (shown below) for each group (handout, in .odt file formatOpenOffice.org Writer)
 Analysis software (SPSS, PPSP, SAS, R, Minitab, Excel, Calc)
Activity
Testing the mean # of tv hours watched The 1st quarter 2010 Nielsen survey concludes that Americans (2 years and older) watch television on average 35.57 hours per week.^{[2]} It seems likely that graduate students (or pick some other subgroup) do not watch nearly this much television per week. Use your class as a sample; collect from each student his/her estimated number of hours of television watched per week. Summarize the sample data and test the sample mean against the given population mean.
As students arrive for class, have them anonymously respond to the following question, by writing their response on a slip of paper. When data collection is complete, list each of the responses on the board, along with an ID number. "Generally speaking, how many hours per week do you watch tv?"
Form students into groups of 24 students. Each group will need access to a laptop with statistical software loaded and a copy of the handout. Have the students complete the handout as a group, which includes the following information.

Resources
The following resources were used for ideas and organization in the development of this activity:
 Dean, S., & Illowsky, B. (2009, February 18). Hypothesis Testing of Single Mean and Single Proportion: Lab. Retrieved from the Connexions Web site: http://cnx.org/content/m17007/1.9/.
References
 ↑ Open Learning Initiative. Statistics. Retrieved from the Open Learning Initiative web site http://oli.web.cmu.edu/openlearning/forstudents/freecourses/statistics.
 ↑ Three Screen Report, Volume 8, 1st quarter 2010.