The following table shows the age and annual salary (in thousands

     According   to Advertising Age’s annual salary review, Mark Hurd, the 49-year-old   chairman, president, and CEO of Hewlett-Packard Co., received an annual   salary of $817,000, a bonus of more than $5 million, and other compensation   exceeding $17 million. His total compensation was slightly better than the   average CEO total pay of $12.4 million. The following table shows the age and   annual salary (in thousands of dollars) for Mark Hurd and 14 other executives   who led publicly held companies. Executive Title Company Age Salary (1000s)   Charles Prince,Chmn/CEO,Citigroup,56,1000 Harol McGraw   III,Chmn/Pres/CEO,MCGraw-Hill Cos.,57,1172 James Dimon,Pres/CEO,JP Morgan   Chase & Co,50,1000 K. Rupert Murdoch, Chmn/CEO,News Corp.,75,4509 Kenneth   D. Lewis,Chmn/Pres/CEO,Bank of America,58,1500 Kenneth I.   Chenault,Chmn/CEO,American Express Co,54,1092 Louis C. Camilleri,Chmn/CEO,   Altria Group,51,1663 Mark V Hurd,Chmn/Pres/CEO,Hewlett-Packard Co,49,817   Martin S. Sorrell,CEO,WPP Group,61,1562 Robert L Nardelli, Chmn/Pres/CEO,   Home Depot, 57, 2164 Samuel J Palmisano ,Chmn/Pres/CEO, IBM Corp, 55, 1680   David C Novak, Chmn/Pres/CEO, Yum Brands, 53, 1173 Henry R Silverman,   Chmn/CEO, Cendant Corp, 65, 3300 Robert C Wright, Chmn/CEO, NBC Universal,   62, 2500 Sumner Redstone, Exec Chmn/Founder, Viacom, 82, 5807 a)Develop a   scatter diagram for these data with the age of the executive as the   independent variable. b) What does the scatter diagram developed in part (a)   indicate about the relationship between the two variables? c) Develop the   least squares estimated regression equation. d) Suppose Bill Gustin is the   72-year-old chairman, president, and CEO of a major electronics company.   Predict the annual salary for Bill Gustin.