Observed and Critical Values
Observed and critical values
Real World
After running a Spearman's rho on exam stress and revision hours data, a student obtains rs = 0.68 and checks a critical values table for n=20, two-tailed, p≤0.05 to decide whether to reject the null hypothesis.
Exam Focus
Always state whether your observed value is significant by explicitly comparing it to the critical value with the correct direction rule.
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