1) You test a new drug to reduce blood pressure. A group of 10 patients with high blood pressure report the following systolic pressures (measured in mm Hg): y S before medication: 178 111 142 134 151 159 172 188 124 119 147.8 26.30 after medication: 173 109 142 133 150 158 168 183 119 114 144.9 25.90 change: 5201114 5 5 5 2.9 2.079 a) Calculate a 90% CI for the change in blood pressure. b) Calculate a 99.9% CI for the change in blood pressure. c) Does either interval (the one you calculated in (a) or (b)) include 0? Why is this important? d) Now conduct a one sample t-test using μ = 0, and α = .10. Are the results consistent with (a)? Why or why not? Make sure you understand this. e) Finally, conduct a one sample t-test using μ = 0, and a = .001. Are the results consistent with (b)? Why or why not? Make sure you understand this.
1) You test a new drug to reduce blood pressure. A group of 10 patients with high blood pressure report the following systolic pressures (measured in mm Hg): y S before medication: 178 111 142 134 151 159 172 188 124 119 147.8 26.30 after medication: 173 109 142 133 150 158 168 183 119 114 144.9 25.90 change: 5201114 5 5 5 2.9 2.079 a) Calculate a 90% CI for the change in blood pressure. b) Calculate a 99.9% CI for the change in blood pressure. c) Does either interval (the one you calculated in (a) or (b)) include 0? Why is this important? d) Now conduct a one sample t-test using μ = 0, and α = .10. Are the results consistent with (a)? Why or why not? Make sure you understand this. e) Finally, conduct a one sample t-test using μ = 0, and a = .001. Are the results consistent with (b)? Why or why not? Make sure you understand this.
Mathematics For Machine Technology
8th Edition
ISBN:9781337798310
Author:Peterson, John.
Publisher:Peterson, John.
Chapter29: Tolerance, Clearance, And Interference
Section: Chapter Questions
Problem 16A: Spacers are manufactured to the mean dimension and tolerance shown in Figure 29-12. An inspector...
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