Question

**Going back to the example from question 3, suppose we now decide to look at similar data but compare men and women’s drinking habits.****Gender****Men****Women****Sample Size**20 22 **Average Drinks Per Week**10.5 4.7 **Sample Standard Deviation**11.7 4.8 - What is the 99% confidence interval for the difference between the average for men and women?

- What is the test statistic for the difference from men to
women?
- What is the p-value?

Answer #1

6. Suppose we go back to the example from question 3. Suppose
the probability remains at 16% but we now take a sample of size
100. a. What is the standard error of the proportion? b. What is
the probability that the sample proportion of people who have white
as an ethnicity is between 10% and 25%?

Suppose we go back to the example from question 3. Suppose the
probability remains at 16% but we now take a sample of size 100.
What is the standard error of the proportion?
What is the probability that the sample proportion of people
who have white as ethnicity is between 10% and 25%?
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