A news article that you read stated that 52% of voters prefer the Democratic candidate. You think that the actual percent is smaller. 100 of the 212 voters that you surveyed said that they prefer the Democratic candidate. What can be concluded at the 0.01 level of significance? a. For this study, we should use | z-test for a population proportion . The null and alternative hypotheses would be: Ho: P VE (please enter a decimal) H , : P V V Please enter a decimal) c. The test statistic z = (please show your answer to 3 decimal places.) d. The critical value - - (Please show your answer to 3 decimal places.) e. The test statistic |is not in the rejection region. f. Based on this, we should | fail to reject Vy the null hypothesis. g. Thus, the final conclusion is that . The data suggest the population proportion is not significantly smaller 52% at a = 0.01, so there is sufficient evidence to conclude that the proportion of voters who prefer the Democratic candidate is equal to 52%. The data suggest the population proportion is not significantly smaller 52% at a - 0.01, so there is not sufficient evidence to conclude that the proportion of voters who prefer the Democratic candidate is smaller 52%. The data suggest the populaton proportion is significantly smaller 52% at a - 0.01, so there is sufficient evidence to conclude that the proportion of voters who prefer the Democratic candidate is smaller 52% Question Help: Message instructor Submit Question Question 4 3.46/5 pts ' 7-10 # 4 0 Details Score on last try: 3.46 of 5 pts. See Details for more. Get a similar question You can retry this question below Only about 11% of all people can wiggle their ears. Is this percent different for millionaires? Of the 346 millionaires surveyed, 55 could wiggle their ears. What can be concluded at the a = 0.05 level of significance? a. For this study, we should use |z-test for a population proportion b. The null and alternative hypotheses would be: Ho: DVE (please enter a decimal) H: PVC V V (Please enter a decimal) c. The test statistic [z \\ - |(please show your answer to 3 decimal places.) d. The p-value = (Please show your answer to 3 decimal places.) . The p-value is V y a f. Based on this, we should | reject Vy the null hypothesis. . Thus, the final conclusion is that The data suggest the population proportion is not significantly different from 11% at a = 0.05, so there is statistically significant evidence to conclude that the population proportion of millionaires who can wiggle their ears is equal to 11%. The data suggest the populaton proportion is significantly different from 11% at a = 0.05, so there is statistically significant evidence to conclude that the population proportion of millionaires who can wiggle their ears is different from 11%. The data suggest the population proportion is not significantly different from 11% at a = 0.05, so there is statistically insignificant evidence to conclude that the population proportion of jonaires who can wiggle their ears is different from 11%
