0.63???!!! If we take Cohen's statement that "all null hypotheses (at least in their twotailed forms) are false" then what we mean by statistical significance is that we
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P more often than not stands for
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The pvalue measures how much evidence there is against the null hypothesis, which represents the belief that there will be no change or effect. A small pvalue indicates that there
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By performing a ztest. the calculator returns a pvalue as part of it's computations.
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