Statistics: Informed Decisions Using Data (4th Edition)

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

Chapter 4 - Section 4.1 - Assess Your Understanding - Applying the Concepts - Page 205: 39

Answer

Investing in First Energy and General Electric would be a smart option as they share a very low correlation coefficient. The correlation coefficient quantifies the linear association between two variables. In this case, the investment will only be in those stocks thatshare a tiny association. Thus, one should choose First Energy and General electric. The following steps need to be followed to find out the correlation coefficient: Step 1: Enter the data in Minitab. Step 2: Select the data and go on Stat→Basic→Correlation Coefficient. Select both the variables and press OK. Section2 First Energy and Cisco share the largest negative correlation coefficient. Cisco and First energy share an association of – 0.248. Thus, they share a negative relationship or association. As one variable rises or falls, the other one will fall and rise, respectively.

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