In: Statistics and Probability
Use the given statistics to complete parts (a) and (b). Assume that the populations are normally distributed. (a) Test whether u1 > u2 at the a=0.01level of significance for the given sample data.(b) Construct a 90% confidence interval about u1-u2 |
Population 1 |
Population 2 |
|||
---|---|---|---|---|---|
n |
29 |
22 |
|||
x overbarx |
45.8 |
43.4 |
|||
s |
4.9 |
11.7 |