What value of z* should be used to construct a 95% confidence interval of a population...
What value of z* should be used to construct a 95% confidence interval of a population mean? Answer choices are rounded to the hundredths place.
Homework Answers
At \(95 \%\) confidence level the \(z\) is,
\(\alpha=1-95 \%=1-0.95=0.05\)
\(\alpha / 2=0.05 / 2=0.025\)
\(\mathrm{Z}_{\alpha / 2}=\mathrm{Z}_{0.025}=1.960\)
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