Given that a sample of size 60 and a population standard deviation of 1.3,what would be the margin of error at a 95% level of confidence?
A)±0.01
B)±3.29
C)±0.33
D)±0.4452

Question

Quizplus · Accepted Answer

The formula for margin of error is:
Margin of Error = Z* (standard deviation / square root of sample size)
Where Z is the Z-score for the level of confidence, which is 1.96 for a 95% level of confidence.
Plugging in the values, we get:
Margin of Error = 1.96 * (1.3 / sqrt(60))
= 0.33
So the margin of error is ±0.33, therefore the best choice is C.

Given That a Sample of Size 60 and a Population