AMS 315, Fall 2010, Practice Examination 1
Announcement
Your first inclass examination will be Thursday, October 21. It will cover Chapters 1
through 8. The important problems are:
1.
One sample normal problems (that is, variance specified), either confidence
interval or test.
2.
Sample size and probability of type II error. This is a very important problem.
3.
One sample t distribution problems (that is, variance estimated from the data)
4.
Two independent sample comparisons, variances known.
5.
Two independent sample comparisons, variances unknown but equal in the two
groups (that is, the pooled variance ttest).
6.
One sample variance test, either confidence interval or test of hypothesis.]
7.
Comparison of two samples variances, either by confidence interval or test.
8.
Comparison of three or more samples; that is, the oneway layout.
Directions
: Write your name in the space provided and have your student
identification or other photo identification available for checking. Work each problem
in the space underneath the problem and on the back side of the page. You may use
any book of your choice and a calculator but not a computer or cellphone. You are on
your honor not to use any other assistance during this examination. You must put
away any loose pieces of paper that are not attached to your book by staple or tape.
There will be no partial credit given for a problem unless you show your work. There
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 Fall '08
 Staff
 Normal Distribution, Standard Deviation, Variance, unbiased estimate, research team

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