CCGPS AA 1.5.3 Example 1

The manager of a car dealership would like to determine the average years of ownership for a new vehicle. He found that a sample of 25 customers who bought new vehicles owned that vehicle for 7.8 years, with a standard deviation of 2.5 years. What is the standard error for this sample mean?

 

Walch Education

 
Resource Type
Activity
Tags
mean  outcomes  sample-mean  sem  standard-error  standard-error-of-the-mean 
Target Group (Age)
15 – 18
Language
English (United States)
 
 
GeoGebra version
4.2
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1501
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