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.) (a-2) At the 0.05 significance level, what is the conclusion?
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:
| Building | ||||||||||
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | |
| Coke Classic | 45 | 136 | 134 | 41 | 146 | 33 | 71 | 224 | 111 | 87 |
| New Coke | 6 | 114 | 56 | 14 | 39 | 20 | 42 | 156 | 61 | 140 |
| Pepsi | 24 | 90 | 100 | 43 | 51 | 42 | 68 | 131 | 74 | 107 |
Two-way ANOVA: Cans versus Drink, Building
| Source | DF | SS | MS | F | P |
| Drink | 2 | 7997.6 | 3998.80 | 5.78 | 0.011 |
| Building | 9 | 55573.5 | 6174.83 | 8.93 | 0.000 |
| Error | 18 | 12443.7 | 691.32 | ||
| Total | 29 | 76014.8 | |||
| Variable | Drink | Mean |
| Cans | Coke Classic | 102.8 |
| New Coke | 64.8 | |
| Pepsi | 73.0 | |
(a-1) 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.)
(a-2) At the 0.05 significance level, what is the conclusion?
multiple choice
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Reject H0
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Do not reject H0
(b) 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 2 decimal places.)
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