Find the point estimate for the true difference between the given population means. Round your answer to three decimal places.
1 answer:
Answer:
Point Estimate for different between population means = - 0.99
Step-by-step explanation:
We are given data of two samples and we have to find the best point estimate of the true difference between two population means. Remember that in absence of data about population the best estimator is the sample data. So, we will find the means of both sample data and find the difference of that means. This difference between the means of sample data will be the best point estimate for the true difference between the population means.
Formula to calculate the mean is:
Mean of Sample 1:
Mean of Sample 2:
Therefore the best point estimate for difference between two population means would be = Mean of Sample 1 - Mean of Sample 2
= 128.55 - 129.54
= - 0.99
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Answer:
Option 2: 27 is the correct answer.
Step-by-step explanation:
Given functions are:
As we can see that the function g(x) in written in terms of f(x), first of all we have to find g(x) by putting the value of f(x) in g(x)
So putting f(x) = x^2-2 in g(x)
As g(-3) has to be found, putting x=-3 in g(x)
Hence
Option 2: 27 is the correct answer.
ANSWER
(-3,3)
EXPLANATION
The given function is
Expand
Rewrite in the form:
This implies that,
Complete the square to get,
The function is now in the form:
where (h,k) =(-3,3) is the vertex
(-3,3)
EXPLANATION
The given function is
Expand
Rewrite in the form:
This implies that,
Complete the square to get,
The function is now in the form:
where (h,k) =(-3,3) is the vertex