IHP 525 Module Six Problem Set.docx

IHP 525 Module Six Problem Set.docx - IHP 525 Module Six...

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IHP 525 Module Six Problem Set 1. Hemoglobin levels in 11-year-old boys vary according to a normal distribution with σ=1.2 g/dL. a)How large a sample is needed to estimate µ with 95% confidence so the margin of error is no greater than 0.5 g/dL? 2.A researcher fails to find a significant difference in mean blood pressure in 36 matched pairs. The test was carried out with a power of 85%. Assuming that this study was well designed andcarried out properly, do you believe that there really is no significant difference in blood pressure? Explain your answer.
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  • Fall '16
  • Victor Heh
  • Statistics, Normal Distribution, Null hypothesis, Statistical hypothesis testing, Statistical significance, Upper respiratory tract infection

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