# In the study of binge drinking mentioned in Exercise 10.3, the percent who said they had engaged

## Question:

a. Specify assumptions, notation, and hypotheses for a two-sided test.

b. Show how to find the pooled estimate of the proportion to use in a test. (You need the count in each year rather than the proportion. In 1999, note this is (0.307)334 = 103.) Interpret this estimate.

c. Find the standard error for the difference used in the test. Interpret it.

d. Find the test statistic and P-value. Make a decision using a significance level of 0.05.

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**Related Book For**

## Statistics The Art And Science Of Learning From Data

**ISBN:** 9780321755940

3rd Edition

**Authors:** Alan Agresti, Christine A. Franklin