Question

Step 1: State the null and alternative hypotheses

Step 2: Indicate the critical value of the appropriate statistic (and draw a picture of the distribution, showing the alpha/critical region and the critical value of the statistic)

Step 3: Calculate the test statistic/p-value.

Step 4: Decision and conclusion (do you retain or reject the null hypothesis? And what does that mean in terms of the problem – write a verbal conclusion that relates back to the actual problem.

1. 50 men and 50 women are intercepted at a mall, asked to smell two fragrances (vanilla vs. musk) and then pick the one they like best. The data are shown below. Is gender related to preference for a certain type of fragrance? Use alpha = .05.

	Musk	Vanilla
Men	35	15
Women	20	30

Answer 1