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.

Ans: Option B Alaska Air has lower percent of late flights than America west at every airport, but…

Answered: Which of these is an example of…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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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.

Definition Definition Middle value of a data set. The median divides a data set into two halves, and it also called the 50th percentile. The median is much less affected by outliers and skewed data than the mean. If the number of elements in a dataset is odd, then the middlemost element of the data arranged in ascending or descending order is the median. If the number of elements in the dataset is even, the average of the two central elements of the arranged data is the median of the set. For example, if a dataset has five items—12, 13, 21, 27, 31—the median is the third item in ascending order, or 21. If a dataset has six items—12, 13, 21, 27, 31, 33—the median is the average of the third (21) and fourth (27) items. It is calculated as follows: (21 + 27) / 2 = 24.

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