If the underlying populations are normally distributed and both population variances are equal, the test statistic
Follows a:
A) standard normal distribution if both samples are large.
B) Student's t distribution with degrees of freedom.
C) standard normal distribution with degrees of freedom.
D) Student's t distribution with degrees of freedom.

Question

If the underlying populations are normally distributed and both population variances are equal, the test statistic ​  ​
Follows a:
A) standard normal distribution if both samples are large. 
B) Student's t distribution with degrees of freedom. 
C) standard normal distribution with degrees of freedom. 
D) Student's t distribution with degrees of freedom.

Quizplus · Accepted Answer

The Answer of If the underlying populations are normally distributed and both population variances are equal, the test statistic ​  ​
Follows a:
A) standard normal distribution if both samples are large. 
B) Student's t distribution with degrees of freedom. 
C) standard normal distribution with degrees of freedom. 
D) Student's t distribution with degrees of freedom.

If the Underlying Populations Are Normally Distributed and Both Population