Which of the following will result in a narrower confidence interval, assuming all other factors are constant?
A) Decreasing the sample size
B) Increasing the confidence level
C) Increasing the sample size
D) Increasing the standard error
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Which of the following will result in a narrower confidence interval, assuming all other factors are constant?
A) Decreasing the sample size
B) Increasing the confidence level
C) Increasing the sample size
D) Increasing the standard error