When a sample size is increased, the confidence interval for the mean is then ______.

A) more significant
B) widened
C) narrowed
D) less significant

Question

When a sample size is increased, the confidence interval for the mean is then ______.A)  more significantB)  widenedC)  narrowedD)  less significant

Kensi Bates · Accepted Answer

Final Answer : C, Explanation :  When the sample size is increased, the standard error of the mean decreases, resulting in a narrower confidence interval. This is because with a larger sample size, there is less random variability in the data, allowing for a more precise estimate of the population mean. Therefore, the correct answer is C) narrowed.

When a sample size is increased, the confidence interval for the mean is then ______.

A) more significant
B) widened
C) narrowed
D) less significant

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