A picture containing graphical user interface Description automatically generated
Graphical user interface, text, application, email Description automatically generated
A picture containing chart Description automatically generated
Graphical user interface, text, application, email Description automatically generated
Application Description automatically generated with low confidence
Graphical user interface, text, application Description automatically generated
Graphical user interface, application, table, Excel Description automatically generated
Graphical user interface, text, application Description automatically generated
Table Description automatically generated with medium confidence
Graphical user interface, text, application, email Description automatically generated
Most individuals are aware of the fact that the average annual repair cost for an automobile depends on the age of the automobile. A researcher is interested in finding out whether the variance of the annual repair costs also increases with the age of the automobile. A sample of 26 automobiles 4 years old showed a sample standard deviation for annual repair costs of $171.59 and a sample of 23 automobiles 2 years old showed a sample standard deviation for annual repair costs of $118.5. Let 4 year old automobiles be represented by population 1. The data is located in the Microsoft Excel Online file below.
Graphical user interface, text, application Description automatically generated
Table Description automatically generated with low confidence