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Results tagged with t-test
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user 11421
A test for comparing the means of two samples, or the mean of one sample (or even parameter estimates) with a specified value; also known as the "Student t-test" after the pseudonym of its inventor.
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votes
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answer
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Why does a t-test on similar random samples often come out with a small p-value?
Running the following Python code, I often get very small p-values, sometimes even around 0.01.
a, b = np.random.normal(0,1,100000), np.random.normal(0,1,100000)
ttest_ind(a,b).pvalue
As the mean a …
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