Population 1 is Normally distributed with a mean of 40 and a standard deviation of 4, and population 2 is normally distributed with a mean of 25 and a standard deviation of 7. Suppose we select independent SRSS of n1 = 100 and n2 = 85 from population 1 and 2 respectively. Which of the following are the values of the mean and the standard deviation of the sampling distribution of T1 – F2?

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Population 1 is Normally distributed with a mean of 40 and a standard deviation of 4, and
population 2 is normally distributed with a mean of 25 and a standard deviation of 7. Suppose we
select independent SRSS of n1 = 100 and n2 = 85 from population 1 and 2 respectively. Which of
the following are the values of the mean and the standard deviation of the sampling distribution of
T1 – F2?
4(1 4)
O 65,
7(1 7)
100
85
72
42
O 15.
100
85
4(1-4)
O 15,
7(1-7)
100
85
42
O 15.
100
85
V馬-VE
42
72
65,
100
85
Transcribed Image Text:Population 1 is Normally distributed with a mean of 40 and a standard deviation of 4, and population 2 is normally distributed with a mean of 25 and a standard deviation of 7. Suppose we select independent SRSS of n1 = 100 and n2 = 85 from population 1 and 2 respectively. Which of the following are the values of the mean and the standard deviation of the sampling distribution of T1 – F2? 4(1 4) O 65, 7(1 7) 100 85 72 42 O 15. 100 85 4(1-4) O 15, 7(1-7) 100 85 42 O 15. 100 85 V馬-VE 42 72 65, 100 85
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