Question

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

Confidence intervals
Find the value:
$$\displaystyle{t}_{{{\frac{{{a}}}{{{2}}}}}}$$
$$\displaystyle{n}={23}$$ for the $$\displaystyle{95}\%$$ confidence interval for the mean.

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