Difference in the average processing times

Reference no: EM13966291

A large insurance company wants to determine whether there is a difference in the average time to process claim forms among its four different processing facilities. The data in Table represent weekly average number of days to process a form over a period of 4 weeks.

Table
Facility 1	Facility 2	Facility 3	Facility 4
1.50	2.25	1.30	2.0
0.9	1.85	2.75	1.5
1.12	1.45	2.15	2.85
1.95	2.15	1.55	1.15

(a) Test whether there is a difference in the average processing times at the 0.05 level.

(b) Test whether there is a difference, using Tukey's method to ?nd which facilities are different.

(c) Interpret your results and state any assumptions you have made in solving the problem.

Reference no: EM13966291

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