Two independent samples are drawn from two populations, and the following information is provided.
Sample 1
Sample 2
n34
52
55
65
s14
18
?
We want to test the following hypotheses.
H0: ?1 - ?2? 0Ha: ?1 - ?2< 0?
a.Determine the degrees of freedom.b.Compute the test statistic.c.At the 5% level, test the hypotheses. Assume the two populations are normally distributed and have equal variances.
What will be an ideal response?
?
| a. | 81 |
| b. | t = -2.887 |
| c. | p-value (.0025) < .005, reject H0 |
Business
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