A study from a Colombian research center is about to publish a pilot study regarding a new coffee plant that they believe can reduce total cholesterol in humans. They gave increasing doses (cups of coffee) to a test patient over several weeks and recorded the following data:
|caffeine (mg)||Cholesterol level (mg/dL)|
Evaluate the claim that the caffeine from this new plant reduces cholesterol by plotting caffeine levels (x) versus the cholesterol levels (y).
- What is the correlation coefficient r and what does it mean in this case?
- What is the coefficient of determination and what does it mean in this case?
- Is there a statistically significant correlation between caffeine intake and cholesterol levels in this case?
A study from a Colombian research center is about to publish a pilot study regarding a new coffee plant that they believe can r caffeine (mg)
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Sep 13, 2020EXPERT
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