A researcher collects data that represents the average number of hours of sleep in the last two nights by 8 depressed patients and 9 non-depressed patients. The researcher is interested in whether the two groups reliably differ in the amount of sleep they get. 1.Which statistical test is appropriate here. Why? 2.What are the null and alternative hypotheses? (Make these two-tailed.) 3.How many degrees of freedom are there? What is tcrit (alpha = 0.05, 2tail)? 4.Calculate tobt by hand, using the mean and s.d data from Jamovi 5.What is your conclusion about H0, using alpha = 0.05, 2tail? What is the basis for your decision? In addition to stating whether the null should be rejected or not, say what that conclusion MEANS in the context of this particular situation.

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
icon
Related questions
Topic Video
Question

A researcher collects data that represents the average number of hours of sleep in the last two nights by 8 depressed patients and 9 non-depressed patients. The researcher is interested in whether the two groups reliably differ in the amount of sleep they get.

1.Which statistical test is appropriate here. Why?

2.What are the null and alternative hypotheses? (Make these two-tailed.)

3.How many degrees of freedom are there? What is tcrit (alpha = 0.05, 2tail)?

4.Calculate tobt by hand, using the mean and s.d data from Jamovi

5.What is your conclusion about H0, using alpha = 0.05, 2tail? What is the basis for your decision? In addition to stating whether the null should be rejected or not, say what that conclusion MEANS in the context of this particular situation.

222 220N N22
sleep.xlsx
X.
File
Edit Insert Format Help
QQ
Calibri
12
f* Sleep
Sleep
1.
64
7.7
1.
1.
8.5
1.
7.
6.2
2.
6.5
7.2
9.9
7.4
69
sleep
Transcribed Image Text:222 220N N22 sleep.xlsx X. File Edit Insert Format Help QQ Calibri 12 f* Sleep Sleep 1. 64 7.7 1. 1. 8.5 1. 7. 6.2 2. 6.5 7.2 9.9 7.4 69 sleep
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 1 images

Blurred answer
Knowledge Booster
Hypothesis Tests and Confidence Intervals for Means
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
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