METHODS OF DATA ANALYSIS
PARAMETRIC AND NON PARAMETRIC TESTS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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If a 99% confidence interval is constructed to estimate
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1.96
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2.33
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2.58
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1.65
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Explanation:
Detailed explanation-1: -What is the Z-score for a 99% confidence interval? The z-score for a two-sided 99% confidence interval is 2.807, which is the 99.5-th quantile of the standard normal distribution N(0, 1) .
Detailed explanation-2: -A 99% confidence interval estimate can be interpreted to mean that: If all possible samples are taken and confidence interval estimates are developed, 99% of them would include the true population mean somewhere within their interval.
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