This is a Lesson 14problem.

You should write down the mean and standard deviation for this problem.

You might see multiple versions of this problem, but mu and sigma will not change.

***************************************

It is believed that 50%of all Americans are "Introverted".

We take an unbiased sample ofn =330students at Wilmington University.

We will model the proportion of students who are "Introverted".

***************************************

Determine the mean and standard deviation for the p-hat model.

Round your SD to four decimal places.

Example SD: 0.0209

***************************************

Question:

Suppose we get 156 "Introverts".

Convert to a proportion, then convert that to a z-score.

Round your z-score to four decimal places.

Example Answer: 1.6626