Statistics: Informed Decisions Using Data (4th Edition)

by Sullivan III, Michael

Published by Pearson

ISBN 10: 0321757270

ISBN 13: 978-0-32175-727-2

Chapter 8 - Review - Test - Page 422: 4a

Answer

The sampling distribution of $x ̅$ is approximately normal with $μ_{x ̅}=2.0~liters$ and $σ_{x ̅}=0.00745~liters$

Work Step by Step

$μ_{x ̅}=μ=2.0$ $σ_{x ̅}=\frac{σ}{\sqrt n}=\frac{0.05}{\sqrt {45}}=0.00745$

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