Question

As the standard deviation (σ) decreases, the width of the confidence interval _______________.

Answer 1

Answer:

increases

Step-by-step explanation:

The width of the confidence interval decreases as the sample size increases.

Answer 2

When there is the decrease in the standard deviation so the width of the confidential interval should be increased.

Given that,

• There is the decrease in the standard deviation.
• We have to know the status of the confidence interval width.

Based on the above information, the following information should be considered.

• When the confidence interval width should be decreased because there is an increase in the sample size.
• Also,  there is an inverse relationship between both of them.

Therefore we can conclude that when there is the decrease in the standard deviation so the width of the confidential interval should be increased.

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