Unformatted text preview: weak (nothing to compare. . we can’t sure about strenth with a diagram itself) and some outliers are presented. c) Null hypothesis: Sleep and score do not have a linear correlation Alternative hypothesis: Sleep and score have a linear correlation d) D.P = 0.197 The magnitude of r is less than DP, so we don’t have enough statistical evidence to reject the null hypothesis. Null hypothesis shouldn’t be rejected. e) We can learn that relation between the final exam score and amount of sleep the night before is not significantly strong. Actually we can say “weak in the population, Sleep and score do not have a linear correlation”...
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- Spring '10
- Null hypothesis, Statistical hypothesis testing, strong linear relation, Jin Yoon