The article Urban Battery Litter cited in Example 8.14 gave the following summary data on zinc mass
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The article “Urban Battery Litter” cited in Example 8.14 gave the following summary data on zinc mass (g) for two different brands of size D batteries:
Assuming that both zinc mass distributions are at least approximately normal, carry out a test at significance level .05 using the P-value approach to decide whether true average zinc mass is different for the two types of batteries.
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Related Book For
Probability And Statistics For Engineering And The Sciences
ISBN: 9781133169345
8th Edition
Authors: Jay L Devore, Roger Ellsbury
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