Question 6A medical researcher is studying the effects of a drug on blood pressure. Subjects in the studyhave their blood pressure taken at the beginning of the study. After being on the medication for4 weeks, their blood pressure is taken again. The change in blood pressure is recorded and used in doing thehypothesis test.Change: Final Blood Pressure - Initial Blood PressureThe researcher wants to know if there is evidence that the drug affects blood pressure. At the end of 4 weeks, 31subjects in the study had an average change in blood pressure of -2.7 with a standard deviation of 5.3.Find the p-value for the hypothesis test.Your answer should be rounded to 4 decimal places.

The average change in blood pressure is -2.7.

Answered: A medical researcher is studying the…

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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A medical researcher is studying the effects of a drug on blood pressure. Subjects in the study have their blood pressure taken at the beginning of the study. After being on the medication for 4 weeks, their blood pressure is taken again. The change in blood pressure is recorded and used in doing the hypothesis test. Change: Final Blood Pressure - Initial Blood Pressure The researcher wants to know if there is evidence that the drug affects blood pressure. At the end of 4 weeks, 31 subjects in the study had an average change in blood pressure of -2.7 with a standard deviation of 5.3. Find the p-value for the hypothesis test. Your answer should be rounded to 4 decimal places.
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A psychologist would like to examine the effects of a new drug on the activity level of animals. Three samples of rats are selected with n=5 in each sample. One group gets no drug, one group gets s small dose, and the third group gets a large dose. The psychologist records the activity level for each animal. The data from this experiment are presented below. No drug Small dose Large dose 5, 3 , 1 , 1 , 5 5, 5, 9, 6, 5 10, 12, 9, 6, 8 =3, SS=16 =6, SS=12 =9, SS=20 Do these data indicate any significant differences among the three groups? Test with α=0.05. Compute the effect size and interpret the result.
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Determine whether the following statement is true or false. Generally, the goal of an experiment is to determine the effect that the treatment will have on the response variable.Choose the correct answer below. False True Click to select your answer.

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