Only about 10% of all people can wiggle their ears. Is this percent higher for millionaires? Of the 334 millionaires surveyed, 37 could wiggle their ears. What can be concluded at the a = 0.10 level of significance? a. For this study, we should use z-test for a population proportion b. The null and alternative hypotheses would be: 8 8 E Ho: p 0.10 (please enter a decimal) H p 0.10 (Please enter a decimal) c. The test statistic zv =1.729 x (please show your answer to 3 decimal places.)