## Extra credit opportunity #4

Due: 3:35pm on Friday, Mar. 18

Instructions:

1. In a new email, type "EC 4" in the subject line.
2. In the text of the email, answer the main question below.
3. Make sure your name appears somewhere in the email.
4. Send the email to dhunter@stat.psu.edu before the due time above.
You will receive one extra credit point for extra credit opportunity #4 if I receive the correct answer to the main question below before the due time.

Question:

Here is a puzzle related to sample exam 2. The answer to each of the following five questions is a number (problem numbers refer to sample exam 2):

1. In Problem #1, what is the predicted handspan, in centimeters, for an individual 60 inches tall?
2. In Problems #4 through 6, suppose all of the counts were multiplied by 7. What would be the new value of the chi-squared statistic?
3. In Problem #7, what is the numerical value of the correlation between x and y?
4. In Problem #9, what is the false negative rate, expressed as a percentage? (In other words, what is 100 times the false negative rate?)
5. In Problem #10, suppose we replace .3 by .045 in the statement of the problem. What is the new answer to the problem, expressed as a percentage?
Round each answer to the nearest integer. Convert each integer to a letter using the formula A=1, B=2, etc. Then unscramble the letters to form a five-letter word related to odds and risk that we have seen in class.

Your main question is this: What is the word?

dhunter@stat.psu.edu