Brand valuations are critical to CEOs, financial and marketing executives, security analyst, institutional investors, and others who depend on well-researched, reliable information needed for assessments, and comparisons in decision making. Millward Brown Optimor has developed the Brand Top 100 most Valuable Global Brands for WPP, the worlds largest communications services group. Unlike other studies, the Brands Top 100 Most Valuable Global Brands fuses consumer measures of brand equity with financial measures to place a financial value on brands. The file BandZTechFin (see folder) contains the brand values for the technology sector and the financial institutions sector in the BrandZ Top 100 Most Valuable Global Brands for a recent year. Assuming that the populations are unknown, is there evidence of a difference between the technology sector and the financial institutions sector with respect to mean brand value? (Use alpha = 5%). (How to solve this in excel? just mention the steps, no need to solve)

Brand	Brand Value 2011 ($millions)	% Brand Value Change	Region	Product Sector
Apple	153285	84	North America	Technology
Google	111498	-2	North America	Technology
IBM	100849	17	North America	Technology
Microsoft	78243	2	North America	Technology
GE	50318	12	North America	Technology
ICBC Asia	44440	1	Asia	Financial Institutions
Wells Fargo	36876	97	North America	Financial Institutions
hp	35404	-11	North America	Technology
Visa	28553	15	North America	Financial Institutions

Data continued till 45 brands. (25 Financial institutions, 20 Technology)