Second Examination Announcement:
Your second examination will be on Thursday, December 2. It will cover Chapters 1
through and including Chapter 11. The focus of the examination will be on the more
recent chapters. My examination week office hours will be Monday from 2:30 to
4:30, the regularly scheduled hour between 5:20 and 6:20 on Tuesday, and
Wednesday from 2:30 to 4:30.
Homework Assignment for Chapter 11
The following problems are example examination questions. The assignment is due
on the day of your second examination, Thursday, December 2.
1.
A research team collected data on 500 participants. Their dependent variable was
the participant’s score on an index of obesity at age 40. The index ranged from 0
to 50, with a higher score indicating more extensive obesity. The average of the
500 participants was 18.2, with an observed standard deviation of 3.2 (the divisor
was
499
1
=

n
). Their independent variable was the participant’s obesity score at
age 30. The average was 2.7, with an observed standard deviation of 1.8. The
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 Fall '08
 Staff
 Normal Distribution, Standard Deviation, Variance, Probability theory, Observed standard deviation

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