A researcher administers a treatment to a sample of participants selected from a population with = 80 . If the researcher obtains a sample mean of M = 88, which combination of factors is most likely to result in rejecting the null hypothesis?
a. = 5 and = .01 c. = 10 and = .01
b. = 5 and = .05 d. = 10 and = .05
Question 2A researcher administers a treatment to a sample of participants selected from a population with = 80 . If a hypothesis test is used to evaluate the effect of the treatment, which combination of factors is most likely to result in rejecting the null hypothesis?
a. A sample mean near 80 with = .05
b. A sample mean near 80 with = .01
c. A sample mean much different than 80 with = .05
d. A sample mean much different than 80 with = .01
Question 3A researcher administers a treatment to a sample of participants selected from a population with = 80 . If a hypothesis test is used to evaluate the effect of the treatment, which combination of factors is most likely to result in rejecting the null hypothesis?
a. A sample mean near 80 for a small sample
b. A sample mean near 80 for a large sample
c. A sample mean much different than 80 for a small sample
d. A sample mean much different than 80 for a large sample
Quick Reply
