51. The amount of surface wax on each side of waxed paper bags is believed to be normally distributed. However, there is reason to believe that there is greater variation in the amount on the inner side of the paper than on the outside.

A sample of 75 observations of the amount of wax on each side of these bags is obtained and the following data recorded.

Conduct a test to determine whether or not the variability of the amount of wax on the inner surface is greater than the variability of the amount on the outer surface (α = .05).

Transcribed Image Text:

Wax in Pounds per Unit Area of Sample Outside Surface x= .948 ? = 91 Inside Surface y= .652 = 82