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The general form of a confidence interval is inferred as ______________. A .Standard error ± Critical value × Statistic B. Statistic ± Critical value × Standard error C. Critical value ± Statistic × Standard error D. Statistic ± Standard error × Sample mean



Answer :

Answer:

B. Statistic ± Critical value × Standard error

Explanation:

The confidence interval for the mean, for example, is calculated as

[tex]\bar{x}\pm z_{\frac{\alpha}{2}}\frac{\sigma}{\sqrt[]{n}}[/tex]

Where x is the statistic, z is the critical value and σ/√n is the standard error, so the general form is

Statistic ± Critical value × Standard error

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