A.)Test whether mu 1μ >mu 2 at the alpha equals=0.05 level ofsignificance for the given sample data.
Find the P value
Find the test statistical  for the hypothesis
Find the lower and upper bound
B.) Construct a 99​% confidence interval about mu μ1−μ2.
| | | Population 1 | Population 2 | |
|---|
n | 2222 | 1616 |
|---|
x overbarx | 50.450.4 | 44.944.9 |
|---|
s | 7.37.3 | 14.7 |
|---|
