End Result Hospital has implemented a program to reduce the incidence of pressure ulcers. The table below shows the number of pressure ulcers observed before and after the program was implemented. Determine the Chitest, critical value, and test statistic. Was the program successful?
Observed	Pressure Ulcer	No PressureUlcer	Total
Preimplementation	11	89	100
Postimplementation	3	97	100
Total	14	186	200
Marginal probability	7%	93%	100%
Expected	Pressure Ulcer	No Pressure Ulcer	Total
Preimplementation	7	93	100
Postimplementation	7	93	100
Total	14	186	200
Chitest	2.66%
Chiinv - test stat	4.92
Chiinv - critical value	3.84