The following information was obtained from matched samples taken from two populations. Assume the population of differences is normally distributed.
Individual
Method 1
Method 2
1
7
5
2
5
9
3
6
8
4
7
7
5
5
6
?
The point estimate for the difference between the means of the two populations (Method 1 - Method 2) is
A. -1.
B. 0.
C. -4.
D. 2.
Answer: A
Business
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