4. Subjects were randomly assigned to one of two treatment conditions in a medical research project which was investigating the effect of a new drug which was expected to lower the resting pulse rates of people with high blood pressure. Subjects in group 1 were administered the new drug, while subjects in group 2 were given a placebo. One hour later, the subjects' resting pulse rates were measured, yielding the following results: Group 2 Group 1 ոլ = 13 X-bar₁ = 78.4 S₁ = = 10.73 n2=16 X-bar2 = 85.8 S₂ = 8.62 a) Perform the appropriate statistical procedure to determine whether the new drug was effective (a <.05). b) The mean resting pulse rate of the population of people who do not suffer from high blood pressure is 72.8. Is group l's mean significantly different from this (a≤.05)?

4. Subjects were randomly assigned to one of two treatment conditions in a medical research project which was investigating the effect of a new drug which was expected to lower the resting pulse rates of people with high blood pressure. Subjects in group 1 were administered the new drug, while subjects in group 2 were given a placebo. One hour later, the subjects' resting pulse rates were measured, yielding the following results: Group 2 Group 1 ոլ = 13 X-bar₁ = 78.4 S₁ = = 10.73 n2=16 X-bar2 = 85.8 S₂ = 8.62 a) Perform the appropriate statistical procedure to determine whether the new drug was effective (a <.05). b) The mean resting pulse rate of the population of people who do not suffer from high blood pressure is 72.8. Is group l's mean significantly different from this (a≤.05)?

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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