THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION

question 66

Multiple Choice

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
A manager is considering the purchase of new production equipment to improve the output of the plant.Suppose the equipment from two suppliers is extensively tested in multiple production runs.A total of 20 runs are recorded on Supplier A's equipment and another 15 runs are reported from Supplier B's equipment.The volume produced is recorded for each of the 35 runs.The results are summarized in the table below.

-The value of the test statistic for determining if there is a difference in the population variances for Supplier A and B is equal to:

• A)0.44
• B)1.5
• C)2.25
• D)0.67

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Definitions:

Test Statistic

A statistic whose value helps determine whether a null hypothesis should be rejected.

Parameter

A numerical characteristic of a population, such as a population mean m, a population standard deviation s, a population proportion p, and so on.

Adjusted Multiple Coefficient

A measure in statistics used to determine the goodness of fit of a model, adjusted for the number of predictors in the model.

SSE

Sum of Squared Errors, a measure used in statistical data analysis to represent the discrepancy between the data and an estimation model.