Question

Suppose the data shown here are the results of a survey to investigate gasoline prices.Ten service stations were selected randomly in each of two cities and the figures represent the prices of a gallon of unleaded regular gasoline on a given day.
Use the F test to determine whether there is a significant difference in the variances of the prices of unleaded regular gasoline between these two cities. Let α = .01. Assume gasoline prices are normallydistributed.


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  • CreatedFebruary 19, 2015
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