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 5.4, respectively. Is this sample sufficient to conclude that the two production departments differ in terms of unit cost variance? Use a = .10. a. State the null and alternative hypotheses. H0: 0 12 Select H : 0 12 Select l02? b. Calculate the value of the test statistic (to 2 decimals). c. The p-value is Select d. What is your conclusion? Select

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