Question

A researcher administered a treatment to a sample of participants selected from a population
of 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, alpha level=0.01 and standard deviation=5
b, alpha level=0.05 and standard deviation=5
c, alpha level=0.01 and standard deviation=10
d, alpha level=0.05 and standard deviation=10

Answer 1

B, the largest alpha level and the smallest SD.