A hospital conducted a study of the waiting time in its emergency room. The hospital has a main campus and three satellite locations. Management had a business objective of reducing waiting time for emergency room cases that did not require immediate attention. To study this, a random sample of 15 emergency room cases that did not require immediate attention at each location were selected on a particular day, and the waiting time (measured from check-in to when the patient was called into the clinic area) was measured. The results are stored in?ER file.
1. At the 0.05 level of significance, is there evidence of a difference in the mean waiting times in the four locations??Please report the test statistic for the appropriate test. ( all answers four decimal places)
2.?Please report the critical value for the appropriate test?
3.?Please report the p-value for the appropriate test?
81.02 Satellite 1
29.75 Satellite 2
30.4 Satellite 3
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