The following table shows the mean annual percent return on capital (profitability) and the mean annual percentage
Question:
The following table shows the mean annual percent return on capital (profitability) and the mean annual percentage sales growth for eight aerospace and defense companies.
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a. Compute the correlation coefficient. Conduct a test of hypothesis to determine if it is reasonable to conclude that the population correlation is greater than zero. Use the .05 significance level.
b. Develop the regression equation for profitability based on growth. Can we conclude that the slope of the regression line is negative?
c. Use a software package to determine the residual for each observation. Which company has the largestresidual?
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a X Y 231 80 5613 5825 31500 33931 32693 132 156 4288 1775 18383 3151 7610 242 ...View the full answer
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Related Book For 
Statistical Techniques In Business And Economics
ISBN: 356
16th Edition
Authors: Douglas Lind, William Marchal
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