Short Answer
Two independent samples of sizes 30 and 35 are randomly selected from two normal populations with equal variances. Which of the following is the test statistic that should be used to test the difference between the population means? A. Student with 64 degrees of freedom.
B. Chi-square
C. Z
D. Student with 63 degrees of freedom.
Correct Answer:

Verified
Correct Answer:
Verified
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