14. A total of 12 participants were randomly assigned to one of three treatment groups: antidepressant medication ("drug"), weekly psychotherapy ("therapy"), or no treatment ("control"). Depression scores were collected 8 weeks after treatment began. We want to know how effective the depression treatments were (that is, do the mean depression scores differ between groups?). Drug Drug Drug b) Determine what test to use. Drug Therapy Therapy Therapy Therapy Control Control Control Control a) What are the null and alternative hypotheses? 8 9 14 6 12 7 15 8 22 25 18 20 c) Determine alpha, how many tails are there, what are the df and find a critical value.
14. A total of 12 participants were randomly assigned to one of three treatment groups: antidepressant medication ("drug"), weekly psychotherapy ("therapy"), or no treatment ("control"). Depression scores were collected 8 weeks after treatment began. We want to know how effective the depression treatments were (that is, do the mean depression scores differ between groups?). Drug Drug Drug b) Determine what test to use. Drug Therapy Therapy Therapy Therapy Control Control Control Control a) What are the null and alternative hypotheses? 8 9 14 6 12 7 15 8 22 25 18 20 c) Determine alpha, how many tails are there, what are the df and find a critical value.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
![14. A total of 12 participants were randomly assigned to one of three treatment groups:
antidepressant medication ("drug"), weekly psychotherapy ("therapy”), or no treatment
("control"). Depression scores were collected 8 weeks after treatment began. We want to
know how effective the depression treatments were (that is, do the mean depression scores
differ between groups?).
Drug
Drug
Drug
b) Determine what test to use.
Drug
Therapy
Therapy
Therapy
Therapy
Control
Control
Control
Control
a) What are the null and alternative hypotheses?
8
9
14
6
12
7
15
8
22
25
18
20
c) Determine alpha, how many tails are there, what are the df and find a critical value.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F09f51b63-46b6-4a16-a6c1-5320dffe70df%2Fdadcb705-0391-4c1e-a701-f0f80dbd03b2%2Fyitcfee_processed.jpeg&w=3840&q=75)
Transcribed Image Text:14. A total of 12 participants were randomly assigned to one of three treatment groups:
antidepressant medication ("drug"), weekly psychotherapy ("therapy”), or no treatment
("control"). Depression scores were collected 8 weeks after treatment began. We want to
know how effective the depression treatments were (that is, do the mean depression scores
differ between groups?).
Drug
Drug
Drug
b) Determine what test to use.
Drug
Therapy
Therapy
Therapy
Therapy
Control
Control
Control
Control
a) What are the null and alternative hypotheses?
8
9
14
6
12
7
15
8
22
25
18
20
c) Determine alpha, how many tails are there, what are the df and find a critical value.
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