Nothing
Code
ols_test_f(model)
Output
F Test for Heteroskedasticity
-----------------------------
Ho: Variance is homogenous
Ha: Variance is not homogenous
Variables: fitted values of mpg
Test Summary
-------------------------
Num DF = 1
Den DF = 30
F = 0.4920617
Prob > F = 0.4884154
Code
ols_test_f(model, rhs = TRUE)
Output
F Test for Heteroskedasticity
-----------------------------
Ho: Variance is homogenous
Ha: Variance is not homogenous
Variables: disp hp wt qsec
Test Summary
-------------------------
Num DF = 4
Den DF = 27
F = 0.4594694
Prob > F = 0.7647271
Code
ols_test_f(model, vars = c("disp", "hp"))
Output
F Test for Heteroskedasticity
-----------------------------
Ho: Variance is homogenous
Ha: Variance is not homogenous
Variables: disp hp
Test Summary
-------------------------
Num DF = 2
Den DF = 29
F = 0.4669306
Prob > F = 0.631555
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