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Essentials of Statistics for the B...

8th Edition
Frederick J Gravetter + 1 other
ISBN: 9781133956570

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BuyFindarrow_forward

Essentials of Statistics for the B...

8th Edition
Frederick J Gravetter + 1 other
ISBN: 9781133956570
Textbook Problem

A sample of n = 9 scores has SS = 288.

a. Compute the variance for the sample.

b. Compute the estimated standard error for the sample mean.

a.

To determine

To find: The variance for the sample.

Explanation

Given info:

A sample of 9 scores has sum of squared difference (SS) equal to 288.

Calculations:

The formula to Compute sample variance s2 is,

s2=SSn1

Substitute SS</

b.

To determine

To find: The estimated standard error for the sample mean.

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