i) In the present form line 577 of statsmodels.stats.proportion.py does not comply with what is stated in the docstring for the case of the two sample z-test. In the case of a two-sample test, the ...
def generate_primary_problem(): """生成小学四则运算题目""" operators = ['+', '-', '*', '/'] a = random.randint(1, 20) b = random.randint(1, 20) operator ...
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