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Get Full Access to Statistics: Informed Decisions Using Data - 5 Edition - Chapter 11.3 - Problem 20
Get Full Access to Statistics: Informed Decisions Using Data - 5 Edition - Chapter 11.3 - Problem 20

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# ?Aluminum Bottles The aluminum bottle, first introduced in 1991 by CCL Container for mainly personal and household items such as lotions, has become po

ISBN: 9780134133539 240

## Solution for problem 20 Chapter 11.3

Statistics: Informed Decisions Using Data | 5th Edition

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Problem 20

Aluminum Bottles The aluminum bottle, first introduced in 1991 by CCL Container for mainly personal and household items such as lotions, has become 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 following information regarding the time (in minutes) required to chill a bottle of beer from room temperature (75°F) to serving temperature (45°F). Construct and interpret a 90% confidence interval for the mean difference in cooling time for clear glass versus aluminum.

Step-by-Step Solution:

Step 1 of 5) Aluminum Bottles The aluminum bottle, first introduced in 1991 by CCL Container for mainly personal and household items such as lotions, has become 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 following information regarding the time (in minutes) required to chill a bottle of beer from room temperature (75°F) to serving temperature (45°F). Construct and interpret a 90% confidence interval for the mean difference in cooling time for clear glass versus aluminum. To obtain the randomness, randomly assign one treatment (tire brand) to each block (car). For example, we have four treatments (tire brand), so randomly select an integer between 1 and 4 for the tire number and a second random integer between 1 and 4 for the tire brand. For example, if a random-number generator gives 2 then 1, place tire 2 of brand A on car 1.

Step 2 of 2

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