Question

Which three inputs are required to calculate a confidence interval at a given level of confidence?

Answer 1

Answer

μ=¯x±(z⋅SE)

Confidence interval of mean

μ=¯x±(z⋅SE)

Where -

μ− Population Mean

¯x− Sample Mean

z− Critical Value [depends on confidence level 90% (= 1.64) or 95% (=1.96) or 99% (=2.58)]

SE− Standard Error