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The Sarbanes-Oxley Act requires only that a firm keep good records.
P-value
The probability of finding the observed, or more extreme, results when the null hypothesis of a study question is true.
Null Hypothesis
A hypothesis used in statistical testing that assumes there is no significant difference or effect, serving as the premise to be tested against the alternative hypothesis.
Null Hypothesis
A statement used in hypothesis testing that assumes there is no significant difference or effect and that any observation is due to chance.
Alternative Hypothesis
A theory that proposes there is a statistically significant relationship between two variables, contrasting the null hypothesis.
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