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You are on the administrative team of Wildcat Hospital. In the past year you have added a new surgical specialty to the hospital. You have
You are on the administrative team of Wildcat Hospital. In the past year you have added a new surgical specialty to the hospital. You have decided to collect data in order to evaluate the performance of the new service. One data element that has been collected is the length of stay for the patients of each of the 15 new surgeons. This is a measure of how long each patient was in the hospital after surgery. The data file above contains this data, with surgeon number and length of stay for five patients for each of the surgeons. (In a real world situation this data would not be so uniform, there would probably be a different number of patients for each surgeon.) You are interested to know if the different length of stays are due to chance or if there is a statistically significant difference. You decide to conduct a one-way ANOVA test. Conducting the test on this many visits is doable by hand, but can be done much faster using SPSS. Use SPSS to conduct an ANOVA test on this data.LOS 95% Confidence Interval for Mean N Mean Std. Deviation Std. Error Lower Bound Upper Bound Minimum Maximum 4.80 1.483 663 2.96 6.64 3 7 6.40 2.302 1.030 W N - 3.54 9.26 4 10 6.20 4.025 1.800 1.20 11.20 12 CN N 9.20 5.891 2.634 1.89 16.51 18 11.00 4.950 2.214 4.85 17.15 5 17 11.20 3.194 1.428 7.23 15.17 15 W V 9.00 6.964 3.114 .35 17.65 18 3.00 2.739 1.225 4.60 11.40 5 12 5.80 4.970 2.223 63 12.97 15 15.20 5.805 2.596 7.99 22.41 10 25 12.00 2.915 1.304 8.38 15.62 15 12 5 9.00 1.581 707 7.04 10.96 11 13 5 6.00 1.225 548 4.48 7.52 7 14 5 9.60 1.140 510 8.18 11.02 CO A 11 15 5 8.20 1.924 860 5.81 10.59 11 Total 75 8.84 4.381 506 7.83 9.85 2 25 ANOVA LOS Sum of Squares df Mean Square F Sig Between Groups 520.080 14 37.149 2.477 008 Within Groups 900.000 60 15.000 Total 1420.080 74 15.0 12.5 Mean of LOS 10.0 75 5.0 13 15
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