Which of these is an example of Simpson’s paradox?     A) Teachers’ salaries and sales of alcoholic beverages have risen together over time, but paying teachers more does not cause higher alcohol sales.   B) Alaska Air has a lower percent of late flights than America West at every airport, but America West has a lower percent when we combine all airports.   C) The percent of surgery patients given Anesthetic A who die is higher than the percent for Anesthetic B, but this is because A is used in more serious surgeries.   D) States in which a smaller percent of students take the SAT exam have higher median scores on the SAT.

MATLAB: An Introduction with Applications
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Which of these is an example of Simpson’s paradox?

 

 

A)

Teachers’ salaries and sales of alcoholic beverages have risen together over time, but paying teachers more does not cause higher alcohol sales.

 

B)

Alaska Air has a lower percent of late flights than America West at every airport, but America West has a lower percent when we combine all airports.

 

C)

The percent of surgery patients given Anesthetic A who die is higher than the percent for Anesthetic B, but this is because A is used in more serious surgeries.

 

D)

States in which a smaller percent of students take the SAT exam have higher median scores on the SAT.

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