Mathematics, 18.11.2019 22:31 jstyopin
The elasticity of a polymer is affected by the concentration of a reactant. when low concentration is used, the true mean elasticity is 55, and when high concentration is used, the mean elasticity is 60. the standard deviation of elasticity is 4 regardless of concentration. if a random sample of size 16 is taken from each population, find the probability that x¯ high − x¯ low ≥ 8.5.
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