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 numerator and denominator degrees of freedom associated with the test statistic for determining if there is a difference in the population variances for Supplier A and B are,respectively:
A)20 and 15.
B)15 and 10.
C)14 and 9.
D)19 and 14.

Question

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 numerator and denominator degrees of freedom associated with the test statistic for determining if there is a difference in the population variances for Supplier A and B are,respectively:
A)20 and 15. 
B)15 and 10. 
C)14 and 9. 
D)19 and 14.

Quizplus · Accepted Answer

The Answer of 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 numerator and denominator degrees of freedom associated with the test statistic for determining if there is a difference in the population variances for Supplier A and B are,respectively:
A)20 and 15. 
B)15 and 10. 
C)14 and 9. 
D)19 and 14.