The administrator of a new paralegal program at Seagate Technical College wants
ID: 3327692 • Letter: T
Question
The administrator of a new paralegal program at Seagate Technical College wants to estimate the grade point average in the new program. He thought that high school GPA, the verbal score on the Scholastic Aptitude Test (SAT), and the mathematics score on the SAT would be good predictors of paralegal GPA. The data on nine students are:
Some of the correlations among the independent variables are strong. Does this appear to be a problem?
Consider the following output. Compute the coefficient of multiple determination. (Negative amounts should be indicated by a minus sign. Round your answers to 3 decimal places.)
Compute the value of F. (Round your answer to 3 decimal places.)
Using .05 significance level conduct a test of hypothesis on each independent variable. (Negative amounts should be indicated by a minus sign. Round your answers to 3 decimal places.)
Following are a histogram and a stem-and-leaf diagram of the residuals. Does the normality assumption for the residuals seem reasonable? State true or false.
The administrator of a new paralegal program at Seagate Technical College wants to estimate the grade point average in the new program. He thought that high school GPA, the verbal score on the Scholastic Aptitude Test (SAT), and the mathematics score on the SAT would be good predictors of paralegal GPA. The data on nine students are:
Explanation / Answer
a1)
the correlation between gpa and legal is 0.911 , hence this value is the highest. Please note that correlation can range from -1 to 1
a2)
Yes, this is a probelm for regression. strong correlations amonst independent variables leads to multi-collinearity
b)
4.3595/(4.3595+0.7036) = 0.861 = 86.1%
c1)
The value of F is calculated as
MS Reg / MS resid = 1.4532/0.1407 = 10.32
Please note that we can answer onyl 4 subaprts of a question at a time , as per the answering guidlelines
legal gpa verbal gpa 0.911 verbal 0.616 0.609 math 0.487 0.636 0.599Related Questions
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