With movie-viewing-at-home made so convenient by services such as Netflix, Pay-per-view, and Video-on-demand, do a majority of Salt Lake City residents now prefer watching movies at home rather than going to the theater? To investigate, a local college student, Lori, decides to conduct a poll of adult residents of Salt Lake City. She selects a random sample of 100 adult residents from the city and gives each participant the choice between watching a movie at home or the same movie at the theater. She records how many choose to watch the movie at home.

1. Pick the correct null hypothesis.

a)Adult residents of the city are equally likely to choose to watch the movie at home as to watch the movie at the theater.

b)Adult residents of the city are more likely to choose to watch the movie at home than to watch the movie at the theater.

c)Adult residents of the city are less likely to choose to watch the movie at home than to watch at the theater.

2. Pick the correct alternative hypothesis.

a)Adult residents of the city are equally likely to choose to watch the movie at home as to watch the movie at the theater.

b)Adult residents of the city are more likely to choose to watch the movie at home than to watch the movie at the theater.

c)Adult residents of the city are less likely to choose to watch the movie at home than to watch at the theater.

3. After analyzing her data, Lori finds that significantly more than half of the sample (p-value 0.012) preferred to watch the movie at home. Below are two possible explanations for the observed majority. Based on her analysis, which explanation do you find the most plausible (i.e., reasonable, believable)?

a)More than half of the adult residents in her city prefer to watch the movie at home.

b)There is no overall preference for movie-watching-at-home in her city, but by pure chance her sample just happened to have an unusually high number of people choose to watch the movie at home.

c)Both (a) and (b) are equally plausible explanations.