Elementary Statistics: A Step-by-Step Approach with Formula Card 9th Edition

Published by McGraw-Hill Education
ISBN 10: 0078136334
ISBN 13: 978-0-07813-633-7

Chapter 11 - Other Chi-Square Tests - Review Exercises - Section 11-2 - Page 641: 5

Answer

Yes.

Work Step by Step

a. State the hypotheses and identify the claim. $H_o:$ At α= 0.05, there is no relationship between the age of the investor and the way the money would be invested. $H_a:$ At α= 0.05, there is a relationship between the age of the investor and the way the money would be invested. b. Find the critical value(s). $\alpha=0.05, df=1\times4=4, \chi^2_c=9.488$ c. Compute the test value. Calculate the expected values using the correct formula. Age45 28.18181818 15.45454545 15.45454545 9.545454545 31.36363636 Age65 33.81818182 18.54545455 18.54545455 11.45454545 37.63636364 Calculate $\chi^2=\sum\frac{(O-E)^2}{E}=28.0$ d. Make the decision. Since $\chi^2>9,488$ we reject the null hypothesis. e. Summarize the results. At α= 0.05, there is a relationship between the age of the investor and the way the money would be invested.
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.