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Essentials of Statistics for the B...

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

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Chapter
Section
BuyFindarrow_forward

Essentials of Statistics for the B...

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

Find the estimated standard error for the sample mean for each of the following samples.

a. n = 4 with SS = 48

b. n = 6 with SS = 270

c. n = 12 with SS = 132

a.

To determine

To Find: The estimated standard error for the given sample.

Explanation

Given info:

A sample with 4 scores has sum of squared difference (SS) equals 48.

Calculation:

Calculate sample variance, s2, as:

s2=SSdf=SSn1

Substitute SS=48 and n=4 in the formula

s2=SSn1=48(41)

b.

To determine

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

c.

To determine

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

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