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Only about 18 of all people can wiggle their ears Is this percent higher for millionaires Of the 302 millionaires surveyed 64 could wiggle their ears Run a hypothesis test to see if the percent of millionaires who can wiggle their ears is more than 18 at the a 0 10 level of significance Use the classical approach a For this study we should use z test for a population proportion b The null and alternative hypotheses would be Ho p H p c The test statistic z 0 977 0 18 0 18 please enter a decimal Please enter a decimal please show your answer to 3 decimal places d The critical value 1 282 e The test statistic is Select an answer Please show your answer to 3 decimal places in the rejection region f Based on this we should Select an answer the null hypothesis g Thus the final conclusion is that O The data suggest the population proportion is not significantly more than 18 at a 0 10 so there is not sufficient evidence to conclude that the proportion of millionaires who can wiggle their ears is more than 18 The data suggest the population proportion is not significantly more than 18 at a 0 10 so there is sufficient evidence to conclude that the proportion of millionaires who can wiggle their ears is equal to 18 The data suggest the populaton proportion is significantly more than 18 at a 0 10 so there is sufficient evidence to conclude that the proportion of millionaires who can wiggle their ears is more than 18

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