He 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 2.2 and 5.4, respectively. Is this sample sufficient to conclude that the two production departments differ in terms of unit cost variance

The answer to the complete question is 2.25.

I sent the last part of the question to you.

Explanation:

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answer; yield to maturity;