Answer: The point estimate of the population mean is <u>25</u>.
The margin of error for the confidence interval is <u>3</u> .
Step-by-step explanation:
The confidence interval for population mean is given by :-
, here 
is the point estimate of the population mean and E is the margin of error .
As per given , we have
Lower bound of CI = 
(1)
Upper bound of CI = 
(2)
Add (1) and (2) , we get
Subtract (1) from (2) , we get
Hence, the point estimate of the population mean is <u>25</u>.
The margin of error for the confidence interval is <u>3</u> .
You multiply by the conjugate to both the denominator and numerator.
After that you can simplify by canceling the 4 and then you are able to simplify the (h) as well.
Answer:
We are given that the frame is 2 units wide, which means that we subtract the length of the outer frame by 2 units for each side:
7 - 2 -2 = 3
9 - 2 -2 = 5
Now, we have the length and width for the smaller rectangle, so we use the area formula (area = length*width) to get:
3*5 = 15
Step-by-step explanation:
Please support my answer.
I don’t think there is a number that does both of those, the factors of 49 are 1, 7, and 49
Answer:
option A
Step-by-step explanation:
option A 400 ft
is the correct answer of this question
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