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Bus stat presentation

  1. 1. Does Coffee Trigger Fights?<br />By: Chris Barna<br />
  2. 2. Introduction<br />Ted and Maria Hartford pay a visit to a psychologist and a marriage counselor<br />They are newly married, but Ted is worried about he and his wife; they had just had another horrible fight and do not know the causes for them.<br />
  3. 3. Objective<br />Ted seems to think that their fights are related with the consumption of coffee.<br />He began collecting data on a daily basis <br />Whether or not they would fight<br />Number of cups of coffee<br />
  4. 4. Consumption of Coffee vs. Fights<br />
  5. 5. Calculations<br />Over 75 days Ted calculated :<br />15/20 arguments Coffee was involved<br />34/49 there were no arguments were coffee was involved<br />Correlation Coefficient <br />0.182173<br />Weak Coefficient<br />
  6. 6. Calculations<br />Null: Drinking coffee does not trigger fighting<br />Alternative: Drinking coffee does trigger fighting<br />
  7. 7. Scatter Plot<br />
  8. 8. T-test; two-sample<br />
  9. 9. End Result <br />The coffee did not trigger the fights<br />Do Not reject the Null<br />Coffee = dependent variable because its added into the situation<br />Fight = independent variable because its what is being effected<br />

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