Suppose the null hypothesis, h0, is: doctors believe that a surgical procedure is successful at least 80% of the time. which of the following gives β, the probability of a type ii error?

An airplane is flying at an elevation of 5150 ft, directly above a straight highway. two motorists are driving cars on the highway on opposite sides of the plane, and the angle of depression to one car is 35 ̊ and to the other is 52 ̊. how far apart are the cars?