_____ 4. Dr. Hipke calculates the standard error for a selected sample to be 2.If the number of subjects for Dr. Hipke's sample was n = 16, what was the standard deviation?

a.64

b.128

c.8

d.it is impossible to determine from the information provided

_____ 5. If sample size is large (n > 30), the sampling distribution of the mean from a positively skewed population is

a.positively skewed

b.negatively skewed

c.normal

d.can only answer this question with s

_____ 6. Professional athletes are now commonly tested for steroid use following competition.It is known that there is some risk of sampling error, but this risk is believed to be minimal.What would constitute a Type II error on the part of the testing agency, if their null hypothesis is that the athlete is drug-free?

a.an athlete who is using steroids tests negative (drug-free)

b.an athlete who is using steroids tests positive (not drug-free)

c.an athlete who is not using steroids tests negative (drug-free)

d.an athlete who is not using steroids tests positive (not drug-free).