Statistics: Informed Decisions Using Data (4th Edition)

Published by Pearson
ISBN 10: 0321757270
ISBN 13: 978-0-32175-727-2

Chapter 13 - Section 13.1 - Assess Your Understanding - Applying the Concepts - Page 636: 25a

Answer

$H_{o}: µ_{301} = µ_{400} = µ_{353}$ $H_{a}:$ At least one of the means is different

Work Step by Step

The Null hypothesis states that the mean strength of all the concrete mixes are the same. The Alternative hypothesis states that at least one of the means is different.
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