The Coca-Cola Company introduced New Coke in 1985. Within three months of this i

Question

The Coca-Cola Company introduced New Coke in 1985. Within three months of this introduction, negative consumer reaction forced Coca-Cola to reintroduce the original formula of Coke as Coca-Cola Classic. Suppose that two years later, in 1987, a marketing research firm in Chicago compared the sales of Coca-Cola Classic, New Coke, and Pepsi in public building vending machines. To do this, the marketing research firm randomly selected 10 public buildings in Chicago having both a Coke machine (selling Coke Classic and New Coke) and a Pepsi machine.

The Coca-Cola Data and a MINITAB Output of a Randomized Block ANOVA of the Data:

Two-way ANOVA: Cans versus Drink, Building

Calculate the value of the test statistic and p-value. (Round "test statistic" value to 2 decimal places and "p-value" to 4 decimal places.)

At the 0.05 significance level, what is the conclusion?

What is the Tukey simultaneous 95 percent confidence interval for the following? (Negative amounts should be indicated by a minus sign. Round your answers to 3 decimal places.)

The Coca-Cola Company introduced New Coke in 1985. Within three months of this introduction, negative consumer reaction forced Coca-Cola to reintroduce the original formula of Coke as Coca-Cola Classic. Suppose that two years later, in 1987, a marketing research firm in Chicago compared the sales of Coca-Cola Classic, New Coke, and Pepsi in public building vending machines. To do this, the marketing research firm randomly selected 10 public buildings in Chicago having both a Coke machine (selling Coke Classic and New Coke) and a Pepsi machine.

Explanation / Answer

here we are interested to know that there is any difference in drink or not.

a) we get from the table, test statistic is 5.58 and p-value of the drink is 0.013

b) reject H0 and claim that there is significantly differes

c) for tukey method

margin of Error = E=F0.975,2,18*sqrt(MSE/10)=39.57

therefore, CI are

Coke Classic-New Coke=(101.4-68.8-E,101.4-68.8+E)=(-6.97,72.17)

Coke Classic – Pepsi=(101.4-72.4-E,101.4-72.4+E)=(-10.57,68.57)

New Coke – Pepsi=(68.8-72.4-E,68.8-72.4+E)=(-43.17,35.97)

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.