In: Statistics and Probability
A.)Test whether mu 1μ >mu 2 at the alpha equals=0.05 level of significance 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 |
Answer Test whether mu 1 >mu 2 at the alpha equals=0.05 level of significance for the given sample data.
Solution: