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Aaraar
15.04.2020 •
Mathematics
Suppose we take a sample of 18 men and 17 women to estimate the difference in average height between men and women. The men had an average height of 70 inches with a standard deviation of 3, and the women had an average height of 66 inches with a standard deviation of 2. Calculate the pooled sample variance (Sp^2) for a two-sample confidence interval for the difference in means.
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Ответ:
And replacing we got:
Step-by-step explanation:
Data given
For this case we have the following info given:
Solution to the problem
The pooled variance is given by this formula:
And replacing we got:
And the pooled sample deviation would be:
Ответ:
Step-by-step explanation:
We have the given the function F(x):
And we know that the function G(x) is this one:
Then, in order to find
, the next step is to substitute the function
into the function
.
Therefore, knowing this, we get that the answer is this: