Two methods of filling cereal boxes are being compared

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Two methods of filling cereal boxes are being compared. Both methods fill the box with the same amount of cereal on average so the company wants to select the method with the lower variance. In a sample of 31 boxes filled using method 1, the standard deviation of fill weights is .75 ounces and in a sample of 41 boxes filled using method 2, the standard deviation is .65 ounces. At the 5% level of significance, does it appear that the variance of method 1 is significantly larger than the variance of method 2?

Reference no: EM13851837

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