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.

Question

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.

Quizplus · Accepted Answer

The Answer of 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.

Two Independent Samples of Sizes 50 and 50 Are Randomly