1 a.Net regression coefficients b.Coefficients of nondetermination c.Analysis of
ID: 3174114 • Letter: 1
Question
1
a.Net regression coefficients
b.Coefficients of nondetermination
c.Analysis of variance
d.Correlation matrix
please choose the correct answer.
2
a.Will be rejected and conclude that monthly salary is related to all of the independent variables
b.Will be rejected and conclude that monthly salary is related to at least one of the independent variables
c.Will not be rejected
d.Will show a high multiple coefficient of determination
please choose the correct answer.
3
a.Age
b.Seniority
c.Level of responsibility
d.Annual salary
please choose the correct answer.
4
The coefficient of determination measures the proportion of ____________.
a.Explained variation relative to total variation
b.Variation due to the relationship among variables
c.Error variation relative to total variation
d.Variation due to regression
please choos the correct answer.
Income Education Job Age Income 1.000 Education 0.677 1.000 Job 0.173 0.181 1.000 0.073 0.689 1.000 Age 0.369Explanation / Answer
1.A simplified format of the function is : cor(x, method = c("pearson", "kendall", "spearman")) x: numeric matrix or a data frame. method: indicates the correlation coefficient to be computed. The default is pearson correlation coefficient which measures the linear dependence between two variables.
So answer is D. Correlation matrix
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