Answered: Suppose researchers use random…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Question

Suppose researchers use random assignment to create two groups of people who are all taking a certain drug at the same dosage each day. The people are taking the drug in order to decrease the number of headaches they have each day. Group A increases their dosage by 50% each day, while Group B acts as a control group and stays on the same original dosage. Suppose the researchers conclude, at the end of the statistical analysis, that there is statistically significant evidence that Group A has a lower average number of headaches each day than Group B.

(a) Which of the following conclusions can be drawn?

Researchers can conclude that the results of this study can be generalized to the entire population since random assignment was used to make the groups.
Researchers can conclude that increasing the dosage caused the average number of headaches to decrease since random assignment was used to make the groups.

(b) Identify (describe in words) the explanatory variable.

(c) Identify (describe in words) the response variable.

Expert Solution