The accounting department analyzes the variance of the weekly unit costs reported by two production departments. A sample of 16
cost reports for each of the two departments shows cost variances of 2.3 and 5.6, respectively. Is this sample sufficient to conclude that the two production departments differ in terms of unit cost variance? Use a = .10.
Calculate the value of the test statistic (to 2 decimals).
Calculate the value of the test statistic (to 2 decimals).
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