Nothing
Code
ols_test_bartlett(hsb, "read", "write")
Output
Bartlett's Test of Homogenity of Variances
------------------------------------------------
Ho: Variances are equal across groups
Ha: Variances are unequal for atleast two groups
Data
---------------------
Variables: read write
Test Summary
----------------------------
DF = 1
Chi2 = 1.222871
Prob > Chi2 = 0.2687979
Code
ols_test_bartlett(descriptr::mtcarz, "mpg", group_var = "vs")
Output
Bartlett's Test of Homogenity of Variances
------------------------------------------------
Ho: Variances are equal across groups
Ha: Variances are unequal for atleast two groups
Test Summary
----------------------------
DF = 1
Chi2 = 1.584876
Prob > Chi2 = 0.2080597
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