The example of on-time flying rates for two pilots. Moe and Jill, that was discu

Question

The example of on-time flying rates for two pilots. Moe and Jill, that was discussed in class (and is in the text) is an example of Simpson's Paradox because Jill had a better rate in each level of the Time of Day variable but not overall. Moe had a better overall rate and he was better in the day and at night. It is a paradox that a pilot would be better for 90% of the day flights but not have the best rate overall. Moe had a better overall rate but he also had the higher rate in only one level of the Time of Day variable level. None of these answers.

Explanation / Answer

On time flight rates of two flights are example of Simpson's Paradox because:

Jill had better rate in each level of the time of the day variable but not overall

This is possible since Jill has most of night flights, which are more difficult, so her average is influenced by night average. With their very different kind of flying condition, overall average can be misleading

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