The proximal humorous fracture is a serious issue for the elderly. The following data shows the results for a medical trial to compare two strategies (operative and physio). Outcomes in 6 months Treatment Improved Not Improved Total Operative 60 40 100 Physio Only 50 50 100   110 90 200   Required: Conduct a hypothesis test to answer the following questions (also, show all your workings); 1. Is there evidence of a difference between the outcomes? 2. The Orthopaedic Society requires an outcome improvement of at least 5% before updating treatment protocols. Should they recommend operative treatment?

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The proximal humorous fracture is a serious issue for the elderly. The following data shows the results for a medical trial to compare two strategies (operative and physio).

Outcomes in 6 months

Treatment

Improved

Not Improved

Total

Operative

60

40

100

Physio Only

50

50

100

 

110

90

200

 

Required:

Conduct a hypothesis test to answer the following questions (also, show all your workings);
1. Is there evidence of a difference between the outcomes?
2. The Orthopaedic Society requires an outcome improvement of at least 5% before updating treatment protocols. Should they recommend operative treatment? 

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