Health, 26.02.2020 23:28, elizabethhubbe

Suppose that memory for unrelated words is distributed normally with a mean of µ = 60. A random sample of n =36 is selected from this population. After a treatment is administered to the individuals in the sample, a memory test that measures memory for unrelated words is administered, the sample mean is found to be M = 52. If the population standard deviation is σ = 18, can we conclude that the treatment has a significant effect? Use a two-tailed test with α=.05. The alternative hypothesis in words is

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Suppose that memory for unrelated words is distributed normally with a mean of µ = 60. A random samp...