number 6

Question 6 16 pts 9 1 0 Details Only about 19% of all people can wiggle their ears. Is this percent higher for millionaires? Of the 341 millionaires surveyed, 80 could wiggle their ears. Run a hypothesis test to see if the percent of millionaires who can wiggle their ears is more than 19% at the a = 0.05 level of significance? Use the classical approach. a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Ho: 7 \\ Select an answer (please enter a decimal) Hy: ? Select an answer (Please enter a decimal) c. The test statistic ? = (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 Select an answer \\\\ in the rejection region f. Based on this, we should |Select an answer the null hypothesis. g. Thus, the final conclusion is that ... The data suggest the populaton proportion is significantly more than 19% at a = 0.05, so there is sufficient evidence to conclude that the proportion of millionaires who can wiggle their ears is more than 19%. The data suggest the population proportion is not significantly more than 19% at a = 0.05, so there is not sufficient evidence to conclude that the proportion of millionaires who can wiggle their ears is more than 19%. The data suggest the population proportion is not significantly more than 19% at or = 0.05, so there is sufficient evidence to conclude that the proportion of millionaires who can wiggle their ears is equal to 19%. h. To the best of your ability, explain why you chose the conclusion you did in part g