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Get Full Access to Probability And Statistics For Engineering And The Sciences - 9 Edition - Chapter 9.2 - Problem 29
Get Full Access to Probability And Statistics For Engineering And The Sciences - 9 Edition - Chapter 9.2 - Problem 29

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# The article Effect of Internal Gas Pressure on ISBN: 9781305251809 122

## Solution for problem 29 Chapter 9.2

Probability and Statistics for Engineering and the Sciences | 9th Edition

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Problem 29

The article Effect of Internal Gas Pressure on theCompression Strength of Beverage Cans and PlasticBottles (J.of Testing and Evaluation, 1993: 129131)includes the accompanying data on compression strength(lb) for a sample of 12-oz aluminum cans filled withstrawberry drink and another sample filled with cola.Does the data suggest that the extra carbonation of colaresults in a higher average compression strength? Baseyour answer on a P-value. What assumptions are necessaryfor your analysis?Sample Sample SampleBeverage Size Mean SDStrawberry drink 15 540 21Cola 15 554 15

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Lecture 9: Estimating Proportions with Confidence 10.1: Overview of Confidence Intervals Confidence Intervals concept: Use sample data to estimate a population parameter Population (size N) = the whole group that we want to make conclusions on Parameter = summary about population Random sample of size n = a few units selected from population Statistic = summary about the sample Sample estimate = provides our best guess as to what is the value of the population parameter, but it is not 100% accurate. Concept: The value of the sample estimate will vary from one sample to the next. The values often vary around the population parameter and the standard

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##### ISBN: 9781305251809

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