ARE
106
Eight questions
on
one page.
Econometrics Homework 6
Winter
2010
A.
Havenner
Data72 contains information
on
salaries and employment characteristics
of
49 employees in a
specific company. Use this dataset to answer the following questions.
For
grading
sanity,
please
run
and
report
your
regressions
with
the
variables
in
the
order
they
are
listed
in
the
dataset.
When testing hypotheses
always
explicitly state the null and alternate hypotheses, the algebraic
test statistic, its distribution, and its sample value, and draw a plain language but precise conclusion.
See the handout Reporting Hypothesis Tests for examples.
To
do this assignment you will need to create an additional dummy variable named
PROF
repre
senting the category
of
professional workers. Use the Variable / Define
New
Variable tab to create
a variable that is neither clerical nor maintenance nor crafts:
PROF
=
!
(CLERICAL
II
MAINT
II
CRAFTS)
List the data to be sure you did it correctly.
Note that Gretl uses the symbol
!
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 Winter '09
 Havenner
 Statistics, Regression Analysis, gretl, Define New Variable, AGE coefficients

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