Services to Retail Grocery Store Owners and Prospective Owners-Namely, Marketing Research Services and Furnishing to the Store Owners Advice Concerning the Type and Quantity of Merchandise to Be Stocked and Prices Charged Therefor by Competitive Enterprises, Store Location Analyses, and Store and Counter Layout Analysis and Advice; Advertising Services-Namely, Designing and Furnishing Advertising Circulars and Materials, Radio and Television Broadcasting, and Newspaper Advertising; and Management Services-Namely, Furnishing Accounting Systems and Advice