A hospital wants to assess the relative diagnostic performance of its four mammography imaging systems. Six radiologists—three experts and three in training—participated in an ROC study. Each radiologist read a set of truth-ascertained images from each camera, evenly divided between diseased and normal cases. An area under the ROC curve was computed for each radiologist and camera, as indicated in the table   Ignoring radiologist experience, conduct a one-way ANOVA with camera as the categorical variable and summarize the results in a table.

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A hospital wants to assess the relative diagnostic performance of its four mammography imaging systems. Six radiologists—three experts and three in training—participated in an ROC study. Each radiologist read a set of truth-ascertained images from each camera, evenly divided between diseased and normal cases. An area under the ROC curve was computed for each radiologist and camera, as indicated in the table

 

Ignoring radiologist experience, conduct a one-way ANOVA with camera as the categorical variable and summarize the results in a table. Please show step by step so that I can replicate the solution on my own.

Camera
1
3
4
Experts
0.978
0.787
0.728
0.951
0.876 0.821
0.754 0.860
0.859
0.863
0.884
0.905
Trainees
0.802
0.861
0.657 0.774
0.818
0.815
0.645 0.666
0.770
0.838 0.710
0.770
Transcribed Image Text:Camera 1 3 4 Experts 0.978 0.787 0.728 0.951 0.876 0.821 0.754 0.860 0.859 0.863 0.884 0.905 Trainees 0.802 0.861 0.657 0.774 0.818 0.815 0.645 0.666 0.770 0.838 0.710 0.770
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