Short Answer
Two independent random samples of sizes = 4 and
= 5 are selected from each of two normal populations:
Calculate
, the pooled estimator of
.
______________
Find a 90% confidence interval for ( ), the difference between the two population means.
CI = ______________ Enter (n1, n2)
Test for
= 0.05.
Conclusion:
We ______________ have sufficient evidence to indicate .
Correct Answer:

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