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Q: Provide an example where an ANOVA might be useful in “the real-world” of healthcare.

Make-up a small dataset to demonstrate.

Run an analysis in R and discuss results.

I will be using ANOVA to determine patient comfort feedback regarding wait time in order to receive care at the radiology department.
> wait<-c(40,30,15,10,50,42,19,10,5,20,23,14,10,20,50)

> comfort<-gl(2,7,labels=c("satisfied","unsatisfied"))

> wait<-c(40,30,15,10,50,42,19,10,5,20,23,14,10,20)

> comfort<-gl(2,7,labels=c("satisfied","unsatisfied"))

> sdata

<-data.frame(comfort,wait)

> sdata

comfort wait

1 satisfied 40

2 satisfied 30

3 satisfied 15

4 satisfied 10

5 satisfied 50

6 satisfied 42

7 satisfied 19

8 unsatisfied 10

9 unsatisfied 5

10 unsatisfied 20

11 unsatisfied 23

12 unsatisfied 14

13 unsatisfied 10

14 unsatisfied 20

> by(sdata$wait,sdata$comfort,stat.desc)

sdata.aov<-aov(sdata$comfort~sdata$wait)