a. For this study, we should use z-test for a population proportion b. The null and alternative hypotheses would be: Ho: 0.18 (please enter a decimal) H: pv< 0.18 (Please enter a decimal) c. The test statistic zv -0.550| (please show your answer to 3 decimal places.) d. The p-value= (Please show your answer to 3 decimal places.) %3D e. The p-value is ? a f. Based on this, we should Select an answerv the null hypothesis. g. Thus, the final conclusion is that ... O The data suggest the population proportion is not signiflcantly lower than 18% at a = 0.01, so there is statistically insignificant evidence to conclude that the population proportion of millionaires who can wiggle their ears is lower than 18%. %3D O The data suggest the populaton proportion is significantly lower than 18% at a = 0.01, so there is statistically significant evidence to conclude that the population proportion of millionaires who can wiggle their ears is lower than 18%. %3D O The data suggest the population proportion is not significantly lower than 18% at a = 0.01, so there is statistically significant evidence to conclude that the population proportion of millionaires who can wiggle their ears is equal to 18%. %3D Hint: Help

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Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.