STATISTICAL TECHNIQUES AND TOOLS
T DISTRIBUTION
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Find the critical value (t-score) for a 99% confidence interval with a sample of 23 people.
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1.714
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1.711
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2.064
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None of these.
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Explanation:
Detailed explanation-1: -Since the sample size is 24 and thus below 30, we will use Student’s t distribution to find the critical value. Thus the critical value is ±2.069 .
Detailed explanation-2: -Answer and Explanation: Confidence level is 99%. Sample size is 17. Hence, the critical value is 2.921, and option c. is correct.
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