The following information was obtained from independent random samples taken of two populations. Assume normally distributed populations with equal variances.
The 95% confidence interval for the difference between the two population means is (use rounded standard error)
A) -5.344 to 11.344.
B) -5 to 3.
C) -4.86 to 10.86.
D) -2.65 to 8.65.

Question

The following information was obtained from independent random samples taken of two populations. Assume normally distributed populations with equal variances.  ​
The 95% confidence interval for the difference between the two population means is (use rounded standard error)
A) -5.344 to 11.344. 
B) -5 to 3. 
C) -4.86 to 10.86. 
D) -2.65 to 8.65.

Quizplus · Accepted Answer

The Answer of The following information was obtained from independent random samples taken of two populations. Assume normally distributed populations with equal variances.  ​
The 95% confidence interval for the difference between the two population means is (use rounded standard error)
A) -5.344 to 11.344. 
B) -5 to 3. 
C) -4.86 to 10.86. 
D) -2.65 to 8.65.

The Following Information Was Obtained from Independent Random Samples Taken