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Working on inference about two population means independent samples The aluminum bottle is popular with beverage manufacturers. Besides being lightweight and requiring less packaging, the

Working on inference about two population means independent samples

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The aluminum bottle is popular with beverage manufacturers. Besides being lightweight and requiring less packaging, the aluminum bottle is reported to cool faster and stay cold longer than typical glass bottles. A small brewery tests this claim and obtains the results shown below. The table contains the mean time required to chill a bottle of beer from 75 F to 45 F and standard deviation - both in minutes. Sample Size Mean time to chill (min) Standard Deviation (min) Clear Glass 42 133.8 9.9 Aluminum 35 92.4 7.3 a. What are the 2 samples? b. What makes this an independent sample problem. c. Discuss how the requirements are met

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