Exercise 35 presented data on the pour size of two groups of experienced bartenders, one group pouring into tumblers and the other into highball glasses. Test the hypothesis that the variability in the two (conceptual) populations of pour sizes is different, at the α = .02 level.

Data From Exercise 35

Exercise 22 from Chapter 9 gave the following data on amount (oz) of alcohol poured into a short, wide tumbler glass by a sample of experienced bartenders 2.00, 1.78, 2.16, 1.91, 1.70, 1.67, 1.83, 1.48. The cited article also gave summary data on the amount poured by a different sample of experienced bartenders into a tall, slender (highball) glass; the following observations are consistent with the reported summary data: 1.67, 1.57, 1.64, 1.69, 1.74, 1.75, 1.70, 1.60.

Data From Chapter 9 Exercise 22

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The industry standard for the amount of alcohol poured into many types of drinks (e.g., gin for a gin and tonic, whiskey on the rocks) is 1.5 oz. Each individual in a sample of 8 bartenders with at least 5 years of experience was asked to pour rum for a rum and coke into a short, wide (tumbler) glass, resulting in the following data: 2.00 1.78 2.16 1.91 1.70 1.67 1.83 1.48 (Summary quantities agree with those given in the article "Bottoms Up! The Influence of Elongation on Pouring and Consumption Volume." J. Consumer Res. 2003: 455- 463.)