Question

With another study, where you also plan on evaluating a mean using the t statistic, you have a sample of n = 21 that has an ss of 500. what is the variance for the sample? 22. 36 250,000 25 5. 0

Answer 1

The variance for the sample is 25

For given question,

We have been given the sample size n = 21

and the sum of squares is SS = 500

We need to find the variance for the sample.

We know that the variance is mathematically represented as,

$\sigma^2=\frac{SS}{n-1}$

Substituting given values in the above formula,

$\Rightarrow \sigma^2\\\\=\frac{500}{21-1}$

= 500 / 20

= 25

So, the variance is 25

Therefore, the variance for the sample is 25

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