Beggars Cant Be Choosers Assuming Beggars Are Stupid - PowerPoint PPT Presentation

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Beggars Cant Be Choosers Assuming Beggars Are Stupid

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Independent Errors (residual plot) Normally Distributed Errors (histogram) ... I wanna apply to this college!!! Now we are. DONE. (or are we finished?) Question ... – PowerPoint PPT presentation

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Title: Beggars Cant Be Choosers Assuming Beggars Are Stupid


1
Beggars Cant Be Choosers(Assuming Beggars Are
Stupid)
  • Amanda Fisher

Shane McNamee
Austin McNamee
2
Original Residual Plot (Linear)
3
Transformed Residual Plot (Exp.)
4
Assumptions
  • Random Sampling
  • Independent Errors (residual plot)
  • Normally Distributed Errors (histogram)
  • Normally Distributed Explanatory and
  • Response Variables

5
Histogram of Residuals (Linear)
6
Outliers
  • Are there any?
  • You bet . . . 12!
  • Identified using a boxplot

7
Interpretation of r2
8
Prediction
  • ? 1.24 - 0.184x
  • 1.24 0.184(3.0) data within range
  • .688 68.8 acceptance rate
  • ? 1.24 0.184(1.0) data NOT w/in range
  • 1.06 106 acceptance rate
  • I wanna apply to this college!!!

9
Now we areDONE.(or are we finished?)
10
Question
  • Is there some correlation between the academic
    recognition score and the acceptance rate of
    college students?

11
Design
  • Data collected by US News and World Report
  • Randomization, Replication, and Control
  • Survey

12
Variables Used
  • Explanatory (x)
  • Academic Recognition Score
  • 5.0 is the highest
  • Response (y)
  • Acceptance Rate (in )

13
Original Scatterplot (Linear)
14
Transformed Scatterplot (Exp.)
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