critical values
- Need Help Understanding How They Got The Test Statistic And Critical Values 1 (1.72 KiB) Viewed 110 times
Adults randomly selected for a poll were asked if they "favor or oppose using federal tax dollars to fund medical research using stem cells obtained from human embryos." Of the subjects surveyed, 464 were in favor, 440 were opposed, and 112 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 flip. Use a 0.10 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? Find the null and alternative hypotheses. O A. Ho: p=0.5 H:p>0.5 0C. Ho: p = 0.5 Hip<0.5 B. Họ: p = 0.5 Hip#0.5 OD. Ho: P+0.5 H:p=0.5 Find the test statistic. z= -0.765 (Round to three decimal places as needed.) Find the critical value(s). z = 1.645, - 1.645 (Use a comma to separate answers as needed. Round to three decimal places as needed.)