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What are the conclusions of hypothesis

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Reference no: EM131907031

A random sample of 20 observations produced a sample mean of 9.5. Find the critical and observed z-values for each of the following and test each hypothesis at α = 0.05. What are the conclusions of each hypothesis. The underlying population standard deviation is known to be 3.5 and the population distribution is normal:

  1. H0: µ = 8.75; H1: µ ≠ 8.75
  2. H0: µ = 8.75; H1: µ > 8.75

Reference no: EM131907031

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