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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.
Firm 1
Firm 2
Firm 3
199
108
162
236
104
86
167
153
160
263
218
135
254
210
207
96
201
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).
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