Multiple Choice
THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
A confidence interval for the difference between the means of two normally distributed populations based on the following dependent samples is desired:
-If the observed sample means are and
Then a 100(1- α) % confidence interval for the difference between two means,independent samples,and known population variances is given by:
A)
-
± zα/2
B)
-
± zα/2
C)
-
± zα/2
NEWLINE
D)
-
± zα/2
Correct Answer:

Verified
Correct Answer:
Verified
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