Only about 15% of all people can wiggle their ears. Is this percent lower for millionaires? Of the 377 millionaires surveyed, 49 could wiggle their ears. What can be concluded at the = 0.01 level of significance?

1. For this study, we should use Select an answer t-test for a population mean z-test for a population proportion Correct
2. The null and alternative hypotheses would be:

H0:H0: ? p Correct Select an answer > < = (please enter a decimal)

H1:H1: ? p Select an answer < > = Correct (Please enter a decimal)

1. The test statistic ? z t Correct = (please show your answer to 3 decimal places.)
2. The p-value = (Please show your answer to 3 decimal places.)
3. The p-value is ? > Correct
4. Based on this, we should Select an answer fail to reject reject accept the null hypothesis.
5. Thus, the final conclusion is that ...

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• The data suggest the population proportion is not significantly lower than 15% at = 0.01, so there is statistically significant evidence to conclude that the population proportion of millionaires who can wiggle their ears is equal to 15%.
• The data suggest the populaton proportion is significantly lower than 15% at = 0.01, so there is statistically significant evidence to conclude that the population proportion of millionaires who can wiggle their ears is lower than 15%.
• The data suggest the population proportion is not significantly lower than 15% at = 0.01, so there is statistically insignificant evidence to conclude that the population proportion of millionaires who can wiggle their ears is lower than 15%.

1. Correct