I am curious if there is a preference for The Mandalorian, Stranger Things, Doctor Who, Supernatural, or Other TV among students at Pierce College. I ask 300 students to choose which they prefer. Below are the results. Conduct a square to determine if there is a preference. Use an alpha (Type 1 error rate) = .05.

The Mandalorian	Stranger Things	Doctor Who	Supernatural	I only watch Sitcoms and Reality TV
77	73	67	59	24

a. What are the null hypothesis and alternative hypotheses?

b. Show a table for expected scores.

c. Compute and report both the critical value and whether the p-value is greater or less than alpha.

d. Based on these data, should you reject the null hypothesis? Why or why not?

e. Based on your results, what would you conclude about the research question? Use everyday, non-technical language.

Research indicates that people who volunteer to participate in research studies tend to be natives of the general area more than non-volunteers. To test this phenomenon, a researcher obtained a sample of 300 Pierce college students. The students were given a description of a psychological research study and asked whether they would volunteer to participate. The researcher also asked where they were from. Use a square to determine if there is a significant relationship between being local and volunteering. Use an alpha (Type 1 error rate) = .05.

Observed	Los Angeles	Out of Area	Total
Volunteer	150	50	200
Non-volunteer	70	30	100
Total	220	80	300

a. What are the null hypothesis and alternative hypotheses?

b. Show table for expected scores.

c. Compute and report both the critical value and whether the p-value is greater or less than alpha.

d. Based on these data, should you reject the null hypothesis? Why or why not?

e. Based on your results, what would you conclude about the research question? Use everyday, non-technical language.