FORESTRY
AGRICULTURAL STATISTICS AND ECONOMICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What is the point estimator for the interval (-5, 13)?
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10
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9
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4
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-5
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Explanation:
Detailed explanation-1: -Confidence interval = sample mean ± margin of error To obtain this confidence interval, add and subtract the margin of error from the sample mean. This result is the upper limit and the lower limit of the confidence interval.
Detailed explanation-2: -The general form of the confidence interval is ‘ point estimate ± M × S E ^ ( estimate ) . ‘ The point estimate is the sample proportion, , and the estimated standard error is S E ^ ( p ^ ) = p ^ ( 1 − p ^ ) n . If the conditions are satisfied, then the sampling distribution is approximately normal.
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