code: def test_qn_naive(self):
      assert_almost_equal(
          scale.qn_scale(self.normal),
          scale._qn_naive(self.normal),
          DECIMAL,
      )
      assert_almost_equal(
          scale.qn_scale(self.range),
          scale._qn_naive(self.range),
          DECIMAL,
      )
      assert_almost_equal(
          scale.qn_scale(self.exponential),
          scale._qn_naive(self.exponential),
          DECIMAL,
      )
  
imports: import numpy
  from numpy.random import standard_normal
  from numpy.testing import assert_almost_equal, assert_equal
  import pytest
  from scipy.stats import norm
  import statsmodels.api
  import statsmodels.robust.scale
  from statsmodels.robust.scale import mad
label_desc: Use image node_id 2 for calling the TestQn obj's underlying member method code with example usage: obj.test_qn_naive() without return types