Go through the following case study and answer the question below: Coca Cola traced it's history back to 1886 and Pepsi in 1898. By the time Pepsi came along, the rival was already selling more than a million gallons of its product per year. Coca-Cola also had its first celebrity endorsement. During the early years, Coke had the edge over Pepsi in advertising thanks to a series of memorable and impactful ads. However, Pepsi soon countered Coca-Cola’s successful ad campaigns of the 1930’s and 40’s with the debut of the advertising jingle. Coca Cola was quick to take the advantage of the emerging power of television in the 1950’s. On Thanks giving day, 1950, the company broadcast a half hour commercial on CBS. The company also debuted its radio friendly ditty, called "Coke Time," in 1953. Meanwhile, Pepsi’s President at the time decided to shift the company’s advertising strategy. His wife, actress Joan Crawford, suggested making Pepsi more of a lifestyle brand rather than one that emphasized value. Another important aspect of the Coke VS Pepsi marketing battle is the product choices each company has offered over the years. Coincidentally both the companies took steps to present more options other than Cola to customers starting in the 1960’s. Coke’s big move was the purchase of the Minute Maid corporation in 1960. Sprite, the company’s most successful spin-off product, was launched in 1961. Pepsi later acquired the distribution rights for 7-Up. The battle is still continuing. However, in recent years, Coca-Cola went down.
QA. Coca-Cola wants to apply new marketing strategies to increase its presence in the market. Coca-Cola decided to launch a new advertising campaign, But before that, it conducted market research to understand whether there is any relationship between advertisement and sales. Based on the above research problem, identify the statistical method which needs to be used for analysis. Explain the method in brief.
QB. After determining that there exists a relationship between advertising cost and sales, the marketing head asked his team to predict the future sales value based on the historical sales and advertising data. Identify the statistical test that can be used by the marketing team to get the results. Explain the test in brief.
