For a given confidence level and population standard deviation,which of the following is true in the interval estimation of the population mean?
A)If the sample size is greater,the interval is narrower.
B)If the sample size is smaller,the interval is narrower.
C)If the population size is greater,the interval is narrower.
D)If the population size is smaller,the interval is narrower.

Question

Quizplus · Accepted Answer

As the sample size increases, the standard error decreases, resulting in a narrower interval. This is because as the sample size increases, the estimate of the population mean becomes more precise. The population size does not affect the interval estimation.

For a Given Confidence Level and Population Standard Deviation,which of the Following