PSYCH 100A Lecture 9: Psych 100A W4 Discussion
Document Summary
= probability of a type i error. Probability of rejecting the null hypothesis when the null hypothesis is true. = probability of a type ii error. Probability of not rejecting the null hypothesis when the null hypothesis is false. Power of a test = 1 - . Probability of correctly rejecting the null hypothesis. Can be increased by increasing sample size. We want the power of our test to be as close to 1 as possible. Null: frank"s rock climbing equipment is safe. Frank thinks that his rock climbing equipment may not be safe when it really is safe. Frank thinks that his rock climbing equipment may be safe when in fact it is not safe. Null: victim is alive when he arrives at the hospital. Emergency crew thinks the victim is dead when the victim is in fact alive. Emergency crew does not know if the victim is alive when the victim is dead.
