SAS_Institute
A00-240 · Question #52
An analyst compares the mean salaries of men and women working at a company. Source DF Type III SS Mean Square F Value Pr > F School 3 17905.24929 5968.41643 4.14 0.0073 Gender 1 1578.63006 1578.63006
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ANOVA and ANCOVA
Question
An analyst compares the mean salaries of men and women working at a company.
Source DF Type III SS Mean Square F Value Pr > F
School 3 17905.24929 5968.41643 4.14 0.0073
Gender 1 1578.63006 1578.63006 1.09 0.2971
School*Gender 3 17205.36689 5735.12230 3.97 0.0091
Which statement is correct at an alpha level of 0.05?
Options
- ASchool*Gender should be removed because it is non-significant.
- BGender should be removed because it is non-significant.
- CSchool should be removed because it is significant.
- DGender should not be removed due to its involvement in the significant interaction.
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Topics
#Two-way ANOVA#Interaction effects#Model selection#Type III SS