FORESTRY
AGRICULTURAL STATISTICS AND ECONOMICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which of the following actions would produce a confidence interval with a smaller width assuming all other contingencies remained constant?
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Using a higher confidence level
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Using a lower confidence level
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Either A or B
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None of the above
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Explanation:
Detailed explanation-1: -If we decrease the margin of error, the width of the confidence interval will decrease. Therefore, the answer is D. Decrease the margin of error.
Detailed explanation-2: -c) Decreasing the standard deviation reduces the width of the confidence interval; hence, increasing the standard deviation is required to increase the width of the confidence interval.
Detailed explanation-3: -The correct answer is best represented by option D) Increase the sample size. Increasing the sample size will automatically result in a narrowing of the width associated with a given confidence interval, provided that all other factors are held constant.
There is 1 question to complete.