Homework Answers
Based on regression output, we can write regression equation as:
Salary = 28394.2 + 1107.2*Years Employed
In this case, Years Employed = 4
Salary = 28394.2 + 1107.2*4 = 32823
Thus, Predicted Salary = 32823
Given, Observed Salary = 31280
Residual = Observed Salary - Predicted Salary
Residual = 31280 - 32823
Residual = -1543
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Question 1 1 pts Consider the following model for estimating the salary of employees at a company (in $) by the number of years employed at the company. technitron.1m-(salary- yrs.empl, data technitr...
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Consider the following regression results: Describe how the response y depends on the regressor x. What...
Consider the following regression results:
Describe how the response y depends on the regressor x. What is
the formula for the regression line? What is the B0 and B1, and
what do these coefficients represent? The Residuals vs. fitted plot
is used to assess what assumption? What does the above plot tell
you about your data? (remember to round all answers to 3 decimal
places)
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and Mississippi (denoted by the variable name ‘Type’) that were
subjected to two different treatments (denoted by the variable name
“Treatment”), chilled or nonchilled. I ran two regression models to
see what variables best describe CO2 uptake of plants, given
different conditions, with the output below:
What are the regression equations for models 1 and
2?
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What does the sign of the...
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Consider the following regression results:
Describe how the response y depends on the regressor x. What is
the formula for the regression line? What is the B0 and B1, and
what do these coefficients represent? The Residuals vs. fitted plot
is used to assess what assumption? What does the above plot tell
you about your data? (remember to round all answers to 3 decimal
places)
Call: Im(formula = y ~ X, data = d) Residuals: Min 1Q Median 3Q Max...
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Q) The CO2 dataset in R has data on plants from Quebec
and Mississippi (denoted by the variable name ‘Type’) that were
subjected to two different treatments (denoted by the variable name
“Treatment”), chilled or nonchilled. I ran two regression models to
see what variables best describe CO2 uptake of plants, given
different conditions, with the output below:
What are the regression equations for models 1 and
2?
What kind of variable is “Treatment”?
What does the sign of the...
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