1. The middle of the confidence interval is Select one: a. The population mean b
ID: 3230619 • Letter: 1
Question
1. The middle of the confidence interval is
Select one: a. The population mean
b. The sample value of the standard error
c. The population standard deviation
d. The sample standard deviation
e. The population value of the standard error
f. The sample mean
2.
In a confidence interval, the distance between the sample mean and the upper limit is
3.
Eyeball estimate the confidence interval using the following data. Then select the response option that is closest to your eyeball estimate.
4.
If we do not know the magnitude of sigma, how do we estimate the standard error?
a. We use the s instead of sigma.
b. We use n instead of s.
c. We use X-bar instead of mu.
d. We don't. We cannot estimate the standard error unless we know sigma.
5. The middle of a confidence interval is______
a. 1
b. The sample mean
c. 0
d. The population mean
6.
7.
The sample mean is ________________ of the confidence interval.
Select one:
a. 95th percentile
b. Middle
c. First quartile
d. Proof
Explanation / Answer
Q 1) The middle of the confidence interval is
Option A ) population mean is correct
Q2) In a confidence interval ,the distance between the sample mean and the upper limit is margine of error
Q 3 ) Data is not displayed so cannot compute this problem
Q 4)If we do not know the magnitude of sigma, how do we estimate the standard error
a. We use the s instead of sigma.
Option A is correct
Q 5 ) The middle of a confidence interval is Population mean
Option D is correct
Q 6 )
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