What is the margin of error for a sample statistic for a population with a standard deviation of 7.75?

Question

asked Jun 25, 2021 204k views

2 Answers

Jimijazz · Answer 1 · 2021-06-27T19:19:10+0000

Answer:

Margin of Error = 1.96
7.75 = 15.19

Explanation:

i) Margin of Error of a population with a standard deviation of 7.75?

ii) Let us assume a two tailed test with a 95% confidence interval

iii)
$Z_{(\alpha )/(2) } = Z_{(\ 0.05 )/(2) } = Z_(0.025) = 1.96$

iv) therefore Margin of Error = 1.96
7.75 = 15.19