Which of the following is NOT true when dealing with independent​ samples?
A. The null hypothesis µ1=µ2 or
µ1 -µ2=0 can be tested using the​ P-value method, the traditional​ method, or by determining if the confidence interval limits for µ1−µ2contain 0.
B. The variance of the differences between two independent random variables equals the variance of the first random variable minus the variance of the second random variable.
C. When making an inference about the two​ means, the​ P-value and traditional methods of hypothesis testing result in the same conclusion as the confidence interval method.