Question

a is .05 and N-25, the probability of rejecting the null hypothesis if the mull hypothesis is true is: a. .os b..95 c. 05/25 - 01 d..95/25 = .19 e. insufficient information to answer as the popu 4. The sampling distribution of the mean always has the same distribution of the raw scores. a. mean b. standard deviation c. skew d. a and b e. all of the above S. If the sample size on which a standard deviation is computed is 10, what's the standard deviation's df? a. 11 b. 10 e. 9 d. 8 e. insufficient information to answer 6. The Type II error rate is: a. the probability of rejecting the null hypothesis when it's true b. the probability of rejecting the alternative hypothesis when it's true c. the probability of not rejecting the null hypothesis when it's true d. the probability of not rejecting the null hypothesis when the alternative hypothesis is true. 7. In a particular study, He is rejected, such that ps.05. The probability prefers to a. the probability that the null hypothesis is correct b. if Ho (the null hypothesis) true, the probability of a sample mean as extreme as that observed c. the probability that the alternative hypothesis is true d. if Hi (the alternative hypothesis) is true, the probability of a sample mean as extreme as that observed 8. If the probability (P) of a P type event is 5 and 20 events are sampled, what is the probability that precisely 10 P type events will be observed? a. .3204 b. .1201 c. .0010 d. .1762

Answer 1

Given 01) 20:05 xrP(Type. I ensor). mean. 5 en g 6) d) probability of not rejecting nuls Hypothesis, when the alternative hypothesis is true Jb) if Holthe null Hypothesis true, the probability lor sample mean as extream ces that observed 7 n = 20, p=0.5 X=10 2H0.5'' (1-0.5)) = 0.1762 (using Binomial distribution).