Question

In: Statistics and Probability

A hospital conducted a study of the waiting time in its emergency room. The hospital has...

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 times
(measured from check-in to when the patient was called into the
clinic area) were collected and stored in ERWaiting .
a. At the 0.05 level of significance, is there evidence of a difference
in the mean waiting times in the four locations?

Data Is Below:

Main Satellite 1 Satellite 2 Satellite 3
120.08 30.75 75.86 54.05
81.90 61.83 37.88 38.82
78.79 26.40 68.73 36.85
63.83 53.84 51.08 32.83
79.77 72.30 50.21 52.94
47.94 53.09 58.47 34.13
79.88 27.67 86.29 69.37
48.63 52.46 62.90 78.52
55.43 10.64 44.84 55.95
64.06 53.50 64.17 49.61
64.99 37.28 50.68 66.40
53.82 34.31 47.97 76.06
62.43 66.00 60.57 11.37
65.07 8.99 58.37 83.51
81.02 29.75 30.40 39.17

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