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3. Write a contract with yourself outlining how you will avoid consumer fraud. Be specific in your plan.

4. Organize your notes from the web pages as well as your plan to avoid consumer fraud and submit with your contract.

Assume that a randomly selected subject is given a bone density test. Bone density test scores are normally distributed with a mean of 0 and a standard deviation of 1. Draw a graph and find , the 9th percentile. This is the bone density score separating the bottom 9% from the top 91%.

Which graph represents ? Choose the correct graph below.

(Please see the attachment)

The bone density score corresponding to is ____.

(Round to two decimal places as needed.)

You are the operations manager for an airline and you are considering a higher fare level for passengers in aisle seats. How many randomly selected air passengers must you survey? Assume that you want to be 95% confident that the sample percentage is within 5.5 percentage points of the true population percentage. Complete parts (a) and (b) below.

a. Assume that nothing is known about the percentage of passengers who prefer aisle seats

n = ____

(Round up to the nearest integer.)

b. Assume that a prior survey suggests that about 37% of air passengers prefer an aisle seat.

(Round up to the nearest integer.)