Upcoming SlideShare
×

Bus stat presentation

318 views

Published on

0 Likes
Statistics
Notes
• Full Name
Comment goes here.

Are you sure you want to Yes No
• Be the first to comment

• Be the first to like this

Views
Total views
318
On SlideShare
0
From Embeds
0
Number of Embeds
2
Actions
Shares
0
2
0
Likes
0
Embeds 0
No embeds

No notes for slide

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 />