Question
Use the given statistics to complete parts (a) and (b). Assume that the populations are normally...
|
Use the given statistics to complete parts (a) and (b). Assume that the populations are normally distributed. (a) Test whetherμ1>μ2 at thealphaαequals=0.10 level of significance for the given sample data.(b) Construct a99% confidence interval aboutμ1-μ2. |
Population 1 |
Population 2 |
|||
|---|---|---|---|---|---|
|
n |
28 |
20 |
|||
|
x overbarx |
46.6 |
42.4 |
|||
|
s |
4.7 |
10.2 |
B.
H0:
μ1=μ2
H1:
μ1>μ2
Your answer is correct.
Find the test statistic for this hypothesis test.
?
(Round to two decimal places as needed.)
Homework Answers
Answer #1
from above test statistic =1.72
reject HO
for above 99% CI =-2.646 ; 11.046 ( please try -2.803 ; 11.203 if this comes wrong)
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