Question
A sample of 400 people ages 25 or older is taken in a small town. The average educational level as measured by the number years
A sample of 400 people ages 25 or older is taken in a small town.
The average educational level as measured by the number years in school of this sample is around 10.4 years.
The SD of the sample is 3.7 years.
The 95 percent confident interval for the average educational level for all persons age 25 or older in the town is from _years to _years?
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Elementary Linear Algebra with Applications
Authors: Bernard Kolman, David Hill
9th edition
132296543, 978-0132296540
