Solution Found!
In each case, determine whether the sample sizes are large
Chapter 8, Problem 45E(choose chapter or problem)
Problem 45E
In each case, determine whether the sample sizes are large enough to conclude that the sampling distribution of is approximately normal.
a. n 1 = 12, n2 = 14, = .42, = .57
b. n 1 = 12, n2 = 14, = .92, = .86
c. n 1 = n2 = 30, = .70, = .73
d. n 1 = 100, n2 = 250, = .93, = .97
e. n 1 = 125, n2 = 200, = .08, = .12
Questions & Answers
QUESTION:
Problem 45E
In each case, determine whether the sample sizes are large enough to conclude that the sampling distribution of is approximately normal.
a. n 1 = 12, n2 = 14, = .42, = .57
b. n 1 = 12, n2 = 14, = .92, = .86
c. n 1 = n2 = 30, = .70, = .73
d. n 1 = 100, n2 = 250, = .93, = .97
e. n 1 = 125, n2 = 200, = .08, = .12
ANSWER:
Step 1 of 6
We know that, for large samples, the sampling distribution of is approximately normal. A sample size is considered large if both