Statistics: Informed Decisions Using Data (4th Edition)

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

Chapter 10 - Section 10.3 - Assess Your Understanding - Applying the Concepts - Page 505: 30

Answer

$μ=5.44~million$ lies outside the confidence interval: null hypothesis is rejected. There is enough evidence to conclude that the volume of Google stock has changed since 2007.

Work Step by Step

$H_0: μ=5.44$ versus $H_1: μ\ne5.44$ Select Stat -> Basic Statistics -> 1-Sample t Select "Summarized data". In "Sample size" enter 35. In "Sample mean" enter 3.28. In "Standard deviation" enter 1.68 Click Options and enter the level of confidence 95%. Click OK. Click OK. $Lower~Bound=2.703$ $Upper~Bound=3.857$ Since $μ\gt Upper~Bound$, we reject the null hypothesis.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.