BIT 2406
Quiz 1
Multiple Choices: Please choose the most correct response to each of the following questions.
Please carry all computations out to four (4) decimal places.
1.
A Regression analysis is a modeling technique
for analyzing the relationship between dependent and independent variables.
2.
Why do we create a scatter plot of the data in regression analysis?
To check for a relationship between X and Y.
3.
The term
!
in the regression model represents
a random error term
4.
In the equation Y =
"
#
+
"
$
X
1i
+
!
,
"
$
is
the slope of the regression line
5.
The
"
$
term indicates
the average change in Y for a unit change in X.
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Problems 6  10 are based on the following problem description and spreadsheet.
A researcher is interested in determining how many calories young men consume. She measured the age of the individuals and recorded
how much food they ate each day for a month. The average daily consumption was recorded as the dependent variable. She has
developed the following Excel spreadsheet of the results.
A
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 Summer '07
 LLClark
 Regression Analysis, following Excel spreadsheet, calories young men

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