1
Review for Exam 1
You are not required to write any SAS code for this exam, however, you will be answering
questions based on the SAS output (with certain key values removed). The missing values can
be calculated from the values provided. Think about the questions that were asked to interpret
the results on the homework problem sets.
Topic 1
1.
Be able to write down the linear regression model including the distribution of the error terms
given a particular situation.
2.
Be able to write down the estimated regression equation given the SAS output.
3.
Be able to state the difference between the linear regression model and the estimated
regression equation.
4.
Given a function of the original explanatory variable, be able to determine the new
regression model in terms of the old model.
5.
Be able to write down the estimated value of
2
given the SAS output.
6.
Be able to calculate and interpret the confidence interval for
0
and
1
given b
0
and s{b
0
)
and/or b
1
and s{b
1
) from the SAS output.
a.
You will need to determine df and t
c
by hand.
7.
Be able to perform a significance test for
0
and
1
given b
0
and s{b
0
) and/or b
1
and s{b
1
)
and appropriate p values from the SAS output. This includes
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 Fall '08
 Staff
 Regression Analysis, c., linear regression model

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