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(Solution Library) A researcher is interested in studying the effects of a new treatment for bipolar disorder. In the population, bipolar disorder has a mean of

Question: A researcher is interested in studying the effects of a new treatment for bipolar disorder. In the population, bipolar disorder has a mean of 30. She randomly selects 60 patients to participate in her study. After two weeks she obtains the following data:

M = 26.4

s 2 = 145.8

  1. What type of test will she need to conduct?
  2. Test the effectiveness of her new treatment using the steps of Null Hypothesis testing.
  3. Calculate the 95% confidence interval for these data. Make sure you interpret as well.

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