Question

A television network maintains that switching its highest rated situation comedy (sitcom) from Monday to Friday evening will have no effect on the show’s popularity, which is currently 93% of the viewing audience. The sponsor believes the change will damage the program’s rating. A trial Friday evening is agreed to and 80 homes in which someone is watching television are randomly surveyed. Of these viewers, 72 of them are watching the sitcom.

a- At the 0.05 significance level, can we conclude that proportion of viewers is less than 93%? What is the decision rule? (Negative amount should be indicated by a minus sign. aRound your answer to 2 decimal places.)

b- Compute the value of the test statistic. (Negative amount should be indicated by a minus sign. Round the intermediate values and final answer to 2 decimal places.)

c- What is your decision regarding the null hypothesis?

Answer 1

Question is answered.