The A2 value for a sample size of 4 is?
A) 1.88
B) 1.023
C) 0.729
D) 0.577

Question

Quizplus · Accepted Answer

To find the A2 value for a sample size of 4, we first need to calculate the range value using the formula:
Range = (Maximum value in the sample) – (Minimum value in the sample)

Let's take an example of a sample of 4 values:
3, 4, 5, 6
Range = 6 – 3 = 3

Next, we need to find the A2 value using the appropriate formula for n=4:
A2 = d2 / R
where d2 is a constant value (2.059 for n=4) and R is the range value.

A2 = 2.059 / 3 = 0.686
However, since we are asked to choose from the given options, the closest value to 0.686 is 0.729, which is option C.

The A2 Value for a Sample Size of 4 Is