The article Abyssal Peridotites > 3,800 Ma from Southern West Greenland: Field Relationships, Petrography, Geochronology, Whole-Rock and
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a. Can you conclude that the mean concentration is greater than 41? Compute the appropriate test statistic and find the P-value.
b. Can you conclude that the mean concentration is less than 43? Compute the appropriate test statistic and find the P-value.
c. Can you conclude that the mean concentration differs from 44? Compute the appropriate test statistic and find the P-value.
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