A Political Scientist Obtained Recordings of Election-Night Acceptance Speeches of Seven

Essay

A political scientist obtained recordings of election-night acceptance speeches of seven newly elected representatives to the U.S. Congress. She counted the number of minutes devoted to urban problems in these speeches. Four of these representatives were from rural districts. They devoted 5, 0, 3, and 4 minutes to urban problems. The other three representatives studied, who were from urban districts, devoted 11, 11, and 14 minutes to urban problems. Do these results suggest that the amount of time devoted to urban problems in acceptance speeches of newly elected representatives to the U.S. Congress differ according to whether they come from rural or urban districts? (Use the .05 level.)
a. Use the five steps of hypothesis testing.
b. Sketch the distribution involved.
c. Figure the effect size and what you can say from a power perspective?
d. Explain your results to someone who is unfamiliar with the t test for independent means.