The Environmental Protection Agency measures city fuel economy by placing the vehicle on a laboratory dynamometer and
Question:
The Environmental Protection Agency measures city fuel economy by placing the vehicle on a laboratory dynamometer and determining the amount of fuel consumed during a standard speed-distance schedule that simulates an urban trip. File XR14034 lists the miles per gallon data for three different automobile models. Can we conclude at the 0.10 level that the three models have the same median fuel economy? Identify and interpret the p-value for the test.
A computer and statistical software.
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The null and alternative hypotheses are H 0 the three models have the same median fuel economy and H ...View the full answer
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