Question: A study has been carried out to compare the United Way contributions made by clerical workers from three local corporations. A sample of clerical workers

A study has been carried out to compare the United Way contributions made by clerical workers from three local corporations. A sample of clerical workers has been randomly selected from each firm, and the dollar amounts of their contributions are as follows. (Use data file XR12027.)

a. What are the null and alternative hypotheses for this test?
b. Use ANOVA and the 0.05 level of significance in testing the null hypothesis identified in part (a).

Firm 1 199 167 Firm 3 162 86 160 135 207 201 Firm 2 108 104 153 218 210 96 263

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