Multiple Choice
Two independent samples of sizes 50 and 50 are randomly selected from two populations to test the difference between the population means, .The sampling distribution of the sample mean difference
is
A) normally distributed.
B) approximately normal.
C) t - distributed with 98 degrees of freedom.
D) chi-squared distributed with 99 degrees of freedom.
Correct Answer:

Verified
Correct Answer:
Verified
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