Question

Find the value: t_{\frac{a}{2}} n=23 for the 95\% confidence interval for the mean.

Confidence intervals
ANSWERED
asked 2021-08-07
Find the value:
\(\displaystyle{t}_{{{\frac{{{a}}}{{{2}}}}}}\)
\(\displaystyle{n}={23}\) for the \(\displaystyle{95}\%\) confidence interval for the mean.

Answers (1)

2021-08-07
Step 1
Given:
\(\displaystyle{n}={23}\)
\(\displaystyle{95}\%\) confidence interval for the mean
Step 2
let \(\displaystyle={23}-{1}\)
\(\displaystyle={22}\)
\(\displaystyle\alpha={0.05}\)
\(\displaystyle{t}_{{\frac{\alpha}{{2}}}}=\pm{2}\cdot{074}\)
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