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Q.10

Expert-verified

Found in: Page 428

Book edition OER 2018

Author(s) Barbara Illowsky, Susan Dean

Pages 902 pages

ISBN 9781938168208

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Short Answer

Find the sum that is $1.5$ standard deviations below the mean of the sums.

The sum is $\sum X = 7424.5577$ .

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Step by Step Solution

TABLE OF CONTENTS :

TABLE OF CONTENTS

Step 1: Given Information

A sample size $(n) = 95$ .

The mean of population $(μ_{X}) = 80$ .

$z = 1.5$

A standard deviation $(σ_{X}) = 12$ .

Step 2: Explanation

To find the sum that is $1.5$ standard deviation below the mean of the sums:

\sum X = (n) (μ_{X}) - (z) (\sqrt{n}) (σ_{X})

Calculating, we have:

$\sum X = 95 \times 80 - 1.5 \times \sqrt{95} \times 12$

$\sum X = 7424.5577$

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Introductory Statistics

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Short Answer

Find the sum that is $1.5$ standard deviations below the mean of the sums.

Step by Step Solution

Step 1: Given Information

Step 2: Explanation

Most popular questions for Math Textbooks

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Select your language

Introductory Statistics

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Short Answer

Find the sum that is 1.5 standard deviations below the mean of the sums.

Step by Step Solution

Step 1: Given Information

Step 2: Explanation

Most popular questions for Math Textbooks

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Find the sum that is $1.5$ standard deviations below the mean of the sums.