Question

The friendly folks at the Internal Revenue Service (IRS) in the United States and Canada Revenue Agency (CRA) are always looking for ways to improve the wording and format of its tax return forms. Three new forms have been developed recently.
To determine which, if any, are superior to the current form, 120 individuals were asked to participate in an experiment. Each of the three new forms and the currently used form were filled out by 30 different people. The amount of time (in minutes) taken by each person to complete the task was recorded.
a. What conclusions can be drawn from these data?
b. What are the required conditions for the test conducted in part (a)?
c. Does it appear that the required conditions of the test in part (a) are satisfied?



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  • CreatedFebruary 03, 2015
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