1. (a) What do we call the error of accepting a false hypothesis? Of rejecting a true hypothesis?
(b) What symbol is usually used for the probability of type I error? What is another name for this?
(c) What is the symbol conventionally used for the probability of type II error?
(d) What is the level of con?dence?
(e) If a is reduced from 5 to 1%, what happens to f3?
2. Having set a ¼ 5%, when is a graduate school more likely to accept the hypothesis that the average Graduate Record Examination (GRE) scores of its entering class
(a) Equal 600?
(b) Are larger than 600?
(c) Are smaller than 600?