1. We want to know if men and women perform differently on statistics test. The average of 15 mens scores was 76. The average of 10 womans scores was 83. The standard deviation in both cases is 10.
a) what are the null and alternate hypothesis?
b) What kind of test should be used?
c) Is it a one tailed or two tailed test? Why?
d) What is the value of the statistic?
e) What can we conclude?
Hypothesis tests are used to analyzed test averages.