Brand valuations are critical to CEO's, financial and marketing executives, security analysts, institutional invesors and others who depend on well-researched, reliable information needed for assessments, and comparison in de Millward Brown Optimor had developed the BrandZ Top 100 Most Valuable Global Brands for WPP, the world's l services group. Unlike other studes, the BrandZ Top 100 most Valuable Global Brands fuses consumer measures to placea financial value on brands. The file "BrandZTechFin" contains the brand values for two sectors in the Br Brands for 2014: the technology sector and the financial institutions sector. a. Assuming that the population variances are equal, is ther evidence of a difference between the technology se sector with respect to mean brand value? (Use a = 0.05) b. Repeat (a), assuming that the population variances are not equal. c. Compare the results of (a) and (b). Brand Brand Value 2014 ($M) Google Apple IBM Microsof Visa Wells Fargo Tencent/QQ ICBC Asia 158843 147880 107541 90185 79197 54262 53615 42101 ICICI Bank 42101 Mastercard SAP Facebook American Exp Baidu HSBC Samsung China Constru RBC Commonwealt Oracle TD hp ANZ Agricultural Accenture Citi Siemens US Bank Bank of China Yahoo 39497 36390 35740 34430 29768 27051 25892 25008 22620 21001 20913 19950 19469 19072 18235 18105 17341 16800 14926 14177 14174 % Brand Value Change Region 40 North America -20 North America -4 North America 29 North America 41 North America 14 North America 97 Asia 2 Asia 2 Asia 42 North America 6 Continental Europe 68 North America 46 North America 46 Asia 13 United Kingdom 21 Asia -7 Asia 13 North America 28 Asia 4 North America 12 North America 19 North America 15 Asia -9 Asia 10 North America 30 North America 36 Continental Europe 9 North America 0 Asia 44 North America Twitter Cisco Sberbank LinkedIn JP Morgan Westpac 13837 13710 12637 12407 12356 11743 new North America 16 North America 0 Asia new North America 28 North America 17 Asia Intel 11667 -15 North America Chase Scotiabank Santander Bank of Amer ING UBS 11663 11351 11060 10149 9771 9683 8 North America 9 North America 20 Continental Europe new North America 29 Continental Europe 30 Continental Europe , security analysts, institutional invesors, d for assessments, and comparison in decision making. ble Global Brands for WPP, the world's largest communications Global Brands fuses consumer measures of brand equity with financial measures he brand values for two sectors in the BrandZ Top 100 Most Valuable Global a difference between the technology sector and the financial institutions Product Sector Technology Technology Technology Technology Financial Institutions Financial Institutions Technology Financial Institutions Financial Institutions Financial Institutions Technology Technology Financial Institutions Technology Financial Institutions Technology Financial Institutions Financial Institutions Financial Institutions Technology Financial Institutions Technology Financial Institutions Financial Institutions Technology Financial Institutions Technology Financial Institutions Financial Institutions Technology Technology Technology Financial Institutions Technology Financial Institutions Financial Institutions Technology Financial Institutions Financial Institutions Financial Institutions Financial Institutions Financial Institutions Financial Institutions