# Statistics testing : Interpret the decision regarding the null hypothesis

Document Sample

```					              Sub: Statistics                                                                         Topic: Testing

Question:
Interpret the decision regarding the null hypothesis.

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Information from AAA indicates that the mean age of passenger cars in the US is 8.4 years. A sample of
40 cars in the student lots at the local university showed the mean age to be 9.2 years. The standard
deviation of this sample was 2.8 years. At the .01 significance level can we conclude the mean age is
more than 8.4 years for the cars of university students?

a. Compute the val
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Description: Interpret the decision regarding the null hypothesis. : Information from AAA indicates that the mean age of passenger cars in the US is 8.4 years.
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