In testing a new light bulb design, 6 bulbs were left on until they burned out or 2000 hours whichever came first. One bulb had not burned out by the end of the test, so 2000 hours was Recorded for that bulb. If the testers had waited for that bulb to burn out, what would have Happened to the mean and median lives of the bulbs?
A) Neither mean nor median would have changed.
B) Both mean and median would increase.
C) The mean would increase, but the median would not change.
D) The median would increase, but the mean would not change.

Question

Quizplus · Accepted Answer

The mean would increase because the actual burnout time would be greater than 2000 hours, increasing the total sum of hours. The median would not change because it is the middle value, and the order of the other values remains the same.

In Testing a New Light Bulb Design, 6 Bulbs Were