A.t - distributed with 98 degrees of freedomB.normally distributedC.approximately normalD.chi-
squared distributed with 99 degrees of freedom Two independent samples of sizes n1 = 50 and
n2 = 50 are randomly selected from two populations to test the difference between the population
means, mu 1 - mu 2. The sampling distribution of the sample mean difference,
Solution
c. Approximately Normal. This is because as the n increases it is easier to approximate that it is a
normal distribution. In both cases, n is high enough to approximate normal..
A.t - distributed with 98 degrees of freedomB.normally distributedC.ap.pdf
1. A.t - distributed with 98 degrees of freedomB.normally distributedC.approximately normalD.chi-
squared distributed with 99 degrees of freedom Two independent samples of sizes n1 = 50 and
n2 = 50 are randomly selected from two populations to test the difference between the population
means, mu 1 - mu 2. The sampling distribution of the sample mean difference,
Solution
c. Approximately Normal. This is because as the n increases it is easier to approximate that it is a
normal distribution. In both cases, n is high enough to approximate normal.
