Question

In: Statistics and Probability

. Explain what it means to say that the sample variance provides an unbiased estimate of...

. Explain what it means to say that the sample variance provides an unbiased estimate of the population variance.

5. (Using both Excel and SPSS) For the following scores: 3, 1, 1, 1

Find the mean.
Find the variance (show your work).
Find the standard deviation.

6. (Using both Excel and SPSS) For the following scores: 1, 0, 4, 1, 1, 5

Find the mean.
Find the variance (show your work).
Find the standard deviation.

Expert Solution

5.

The SPSS output is:

The Excel output is:

The formulas used are:

6.

The SPSS output is:

The Excel output is:

The formulas used are:

orchestra answered 2 years ago

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