Q99 · Practice questionSimple familiar1 mark
QUESTION 99
An approximate 95% confidence interval for a population mean is . Which statement is best supported?
(A)
The population mean is definitely 50.
(B)
A claim is not consistent with this interval.
(C)
Exactly 95% of observations lie in the interval.
(D)
There is a 95% probability that every future sample mean lies in the interval.
WORKED SOLUTION
1 markAnswer B
ANSWER
B
Worked solution
The proposed mean lies outside , so it is not consistent with this interval. The interval does not specify the range of individual observations or all future sample means.
Selects the correct option.
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