What's the news? The Pew Research Center reported in 2012 that 23% of 18- to 29-year-olds watch a cable news channel regularly. The director of media relations at a large university wants to know whether the population proportion of cable news viewers among students at her university is greater than the proportion among 18- to 29-year-olds in general. She surveys a simple, random sample of 200 students at the university and finds that 66 of them watch cable news regularly. Can she conclude that the proportion of students at her university who watch cable news regularly is greater than 0.23?
a. State the null and alternate hypotheses.
b. Compute the value of the test statistic.
c. Do you reject Ho? Use the α = 0.01 level.
d. State a conclusion.