which assumption is true for proportional hazards? what does proportional hazards assumption hold what is proportional hazards assumption when to use proportional hazards assumption is the proportional hazards assumption true what is the proportional hazards assumption which assumption should be tested in a proportional hazards hypothesis? what is the proportional hazards assumption which assumption about proportionality is not supported why is meant proportional hazards assumption proportional hazards assumption which hypothesis of proportionality of hazards is accepted in a study? what is the proportional hazards assumption? proportionality assumption for the r model of danger if the proportionality assumption is valid, the r plot should be __________. how do I verify the proportional hazards assumption does proportionality assumption hold for large data sets what is the proportional hazards assumption? if the proportional hazards assumption is valid, which is not true? which assumptions about proportionality are rejected?