Cloud seeding has been studied for many decades as a weather modification procedure.  The rainfall in acre-feet from 20 clouds that were selected at random and seeded with silver nitrate follows:  18.0, 30.7, 19.8, 27.1, 22.3, 18.8, 31.8, 23.4, 21.2, 27.9, 31.9, 27.1, 25.0, 24.7, 26.9, 21.8, 29.2, 34.8, 26.7, and 31.6.  There is a claim that mean rainfall from seeded clouds exceeds 25 acre-feet.  The P-value for the test H0: µ = 25 versus H1: µ > 25 is closest to:

A First Course in Probability (10th Edition)
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Author:Sheldon Ross
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Chapter1: Combinatorial Analysis
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Cloud seeding has been studied for many decades as a weather modification procedure.  The rainfall in acre-feet from 20 clouds that were selected at random and seeded with silver nitrate follows:  18.0, 30.7, 19.8, 27.1, 22.3, 18.8, 31.8, 23.4, 21.2, 27.9, 31.9, 27.1, 25.0, 24.7, 26.9, 21.8, 29.2, 34.8, 26.7, and 31.6.  There is a claim that mean rainfall from seeded clouds exceeds 25 acre-feet.  The P-value for the test H0: µ = 25 versus H1: µ > 25 is closest to:

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