Question

Assume that adults were randomly selected for a poll. They were asked if they​ "favor or oppose using federal tax dollars to fund medical research using stem cells obtained from human​ embryos." Of those​ polled, 487 were in​ favor, 401 were​ opposed, and 124 were unsure. A politician claims that people​ don't really understand the stem cell issue and their responses to such questions are random responses equivalent to a coin toss. Exclude the 124 subjects who said that they were​ unsure, and use a 0.05 significance level to test the claim that the proportion of subjects who respond in favor is equal to 0.5. What does the result suggest about the​ politician's claim? Identify the test statistic for this hypothesis test and Identify the​ P-value for this hypothesis test.

Answer 1

Here sample size is : 487 + 401 = 888

Conclusion: There is no evidence to support the claim that the proportion of subjects who respond in favor is equal to 0.5.