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14. A bacterial strain is tested for its adhesion properties. A sample of seven measurements gave readings of 2.69 5.76 2.67 1.62 4.12 3.77 5.01

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14. A bacterial strain is tested for its adhesion properties. A sample of seven measurements gave readings of 2.69 5.76 2.67 1.62 4.12 3.77 5.01 in dyne-cm2 . Assuming adhesion is normally distributed, test the hypothesis that adhesion of this strain is greater than 2.8 dyne-cm at level of significance a = 0.05

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