Medical experts have long noticed that blacks do not receive the latest high-tech treatments. To determine whether physician bias contributed to this phenomenon, social psychologists analyzed Medicare...

Medical experts have long noticed that blacks do not receive the latest high-tech treatments. To determine whether physician bias contributed to this phenomenon, social psychologists analyzed Medicare records of 150 black and 150 white randomly selected heart attack patients who were treated either by a black or white physician. A different physician was required for each patient record used. The variable of interest is whether the patients received an angiogram. The following data were collected.

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= 0.05, what do you conclude?