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Chapter 3 Project: Investigating Relationships
Transcript of Chapter 3 Project: Investigating Relationships
By: Ayomide Wowo
Conclusion & Discussion
The better decision would be the size of the laptop.The correlation between the size of the laptop and the battery life of the laptop was higher than the correlation between the cost of the laptop and the battery life. In the data for cost only 00.15% of the data was accounted for while for size 13.22% of the data was accounted for.
In my project I am investigating whether the size or cost of a laptop is better to predict the battery life of a laptop. My two explanatory variables are the size and cost of the laptop. The response variable is the battery life of the laptop. My hypothesis is that, the more expensive the laptop and the bigger the laptop, the longer the battery life. It should have a positive relationship.
I got my data using google. It was from:
Both graphs have a positive correlation.The graph with the relationship between the size of laptop and battery life has a stronger correlation than the graph with the relationship between cost of laptop and battery life.
Summaries and Interpretations
y hat=1.4356E^-4 + 12.5882(Cost of laptop)
y hat=.7599+2.9274(size of laptop)