Question: 35. Exercise 35 from Chapter 9 gave the following data on amount (oz) of alcohol poured into a short, wide tumbler glass by a sample

35. Exercise 35 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.

a. What does a comparative boxplot suggest about similarities and differences in the data?

b. Carry out a test of hypotheses to decide whether the true average amount poured is different for the two types of glasses; be sure to check the validity of any assumptions necessary to your analysis, and report a P-value for the test.

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