Hint: Sampling distribution derives from the original population and it consists of means
of all possible samples drawn from the original population.
Calculate standard deviation of the comparison distribution.
(2 points total: 1 for work and 1
Considering the research question and the hypotheses, should the test be one-tailed or
(2 points total: 1 for each answer)
Determine the critical t value(s) for this hypothesis test based on the degree of freedom,
from (d), and the preset alpha level.
(1 point total)
Compare the calculated
statistic with the critical
value by stating which is more
“extreme”, and then make a decision about the hypothesis test by stating clearly “reject”
or “fail to reject” the null hypothesis.
Calculate the pooled standard deviation
for the populations and then use it to calculate
the standardized effect size of this test.