In a sample survey, it is common practice to use a t value of (when approximating a 95% confidence interval)
A) 1.
B) 2.
C) 3.
D) 4.

Name: In a sample survey, it is common practice to use a t value of (when approximating a 95% confidence interval) A) 1. B) 2. C) 3. D) 4.
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Quizplus · Accepted Answer

When approximating a 95% confidence interval, the commonly used t value is 2. This is because when using a table of t values and a degree of freedom of n-1, the value of 2 corresponds to a 95% confidence level.

In a Sample Survey, It Is Common Practice to Use