RESEARCH METHODOLOGY

STATISTICAL TECHNIQUES AND TOOLS

T DISTRIBUTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Find the critical value (t-score) for a 99% confidence interval with a sample of 23 people.
A
1.714
B
1.711
C
2.064
D
None of these.
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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