If the length of a confidence interval is 3 for inference concerning a mean, the required sample size is
<h3>What is an
equation?</h3>
An equation is an expression that shows the relationship between two or more variables and numbers.
σ = standard deviation, n = sample size, the margin of error (E) is given by:
If the length of a confidence interval is 3 for inference concerning a mean, the required sample size is
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So, here is exactly how you would do this:
-3m-2e if m=6 and e=1
We know the values of e and m. We can plug these in to evaluate.
Simply replace the number 6 in place of m and 1 in place of e in -3m-2e
-3m-2e Original expression
-3(6)-2(1) With values plugged in
-18-2 Simplified
-20 Final answer
Our final answer would therefore be: -20
1/8 divide both numbers by 5