Question 15 (1 point) A test for the Degree of Reading Power (DPR) is a test...
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Question 15 (1 point) A test for the Degree of Reading Power (DPR) is a test of the reading ability of children. In the northeast part of the country the average DPR is 38. We want to know if the performance of the children in our school district is on average the same as that in the northeast region. So we want to test (at the 0.05 level) the hypothesis Ho: H=38 vs. H₂: μ * 38 We take a random sample of 44 children from our school district and the 95% confidence interval for the population mean is (30.819, 39.363). Which of these statements is true? I would reject HO at level 0.05. I think the mean DPR for the children in our school district can be considered equal to the mean DPR in the northeast. Rject HO because the sample mean is 35.091 and not 38. A mistake has been made, the width of the interval should be 0.95. Question 15 (1 point) A test for the Degree of Reading Power (DPR) is a test of the reading ability of children. In the northeast part of the country the average DPR is 38. We want to know if the performance of the children in our school district is on average the same as that in the northeast region. So we want to test (at the 0.05 level) the hypothesis Ho: H=38 vs. H₂: μ * 38 We take a random sample of 44 children from our school district and the 95% confidence interval for the population mean is (30.819, 39.363). Which of these statements is true? I would reject HO at level 0.05. I think the mean DPR for the children in our school district can be considered equal to the mean DPR in the northeast. Rject HO because the sample mean is 35.091 and not 38. A mistake has been made, the width of the interval should be 0.95.
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