Homework Help is Here – Start Your Trial Now!
Math
Statistics
2. 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 1 n₁ = 13 X-bar, = 78.4 S₁ = 10.73 Group 2 n₂ = 16 X-bar₂ = 85.8 S₂ = 8.62 Perform the appropriate statistical procedures to determine whether the new drug was effective (a <.05).

2. 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 1 n₁ = 13 X-bar, = 78.4 S₁ = 10.73 Group 2 n₂ = 16 X-bar₂ = 85.8 S₂ = 8.62 Perform the appropriate statistical procedures to determine whether the new drug was effective (a <.05).

MATLAB: An Introduction with Applications
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
icon
Related questions
Question
100%
Plz send Only answer question 2
1. 2. Psychology 2211 Assignment 2 In a psychology experiment, 24 subjects were randomly assigned to either a control or an experimental group. After the experiment, some subjects from the experimental group had dropped out and the following data were obtained: Control Group nc = 12 X-bar = 75 Sc= 14.5 Answers: Experimental Group = 8 ne SE = 16.2 Is X-bar significantly higher than X-bar (a < .01)? 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 1 n₁ = 13 X-bar, = 78.4 S, 10.73 X-bar = 80 Group 2 n₂ = 16 X-bar₂ = 85.8 S₂ = 8.62 Perform the appropriate statistical procedures to determine whether the new drug was effective (a <.05). 1. Fobt = 1.25, do not reject Ho, do t test; tobt = .72, do not reject Ho, no evidence that the experimental mean is significantly higher than the control mean. 2. Fobt = 1.55, do not reject Ho, do t test; tobt = -2.061, reject Ho, the new drug is more effective
Transcribed Image Text:1. 2. Psychology 2211 Assignment 2 In a psychology experiment, 24 subjects were randomly assigned to either a control or an experimental group. After the experiment, some subjects from the experimental group had dropped out and the following data were obtained: Control Group nc = 12 X-bar = 75 Sc= 14.5 Answers: Experimental Group = 8 ne SE = 16.2 Is X-bar significantly higher than X-bar (a < .01)? 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 1 n₁ = 13 X-bar, = 78.4 S, 10.73 X-bar = 80 Group 2 n₂ = 16 X-bar₂ = 85.8 S₂ = 8.62 Perform the appropriate statistical procedures to determine whether the new drug was effective (a <.05). 1. Fobt = 1.25, do not reject Ho, do t test; tobt = .72, do not reject Ho, no evidence that the experimental mean is significantly higher than the control mean. 2. Fobt = 1.55, do not reject Ho, do t test; tobt = -2.061, reject Ho, the new drug is more effective
Expert Solution
steps

Step by step

Solved in 4 steps with 40 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman
SEE MORE TEXTBOOKS