Public Policy and Political Science
A candidate for district attorney claims that 75% of all residents in Elko County, Nevada, favor granting police additional powers to tap telephone lines. To check this claim, a random sample of 560 residents was selected, and 392 said they were in favor of more phone taps.
a. Is there any evidence to suggest the true proportion of residents who favor additional power to tap phones is less than 0.75? Use a = 0.01.
b. Compute the p value associated with this hypothesis test.