I want to study whether or not distractions in the environment will affect memory performance. I recruit 25 students to take part in my study and I randomly assign them into one of two groups: a memory task in a distraction free environment or a memory task in an environment where several distractions will be presented. I measure the number of errors that each participant makes in their respective conditions. Test the hypothesis that those in the distracted group have more errors than those in the no distraction group at an alpha of 0.05.
I want to study whether or not distractions in the environment will affect memory performance. I recruit 25 students to take part in my study and I randomly assign them into one of two groups: a memory task in a distraction free environment or a memory task in an environment where several distractions will be presented. I measure the number of errors that each participant makes in their respective conditions. Test the hypothesis that those in the distracted group have more errors than those in the no distraction group at an alpha of 0.05.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section: Chapter Questions
Problem 13PT
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I want to study whether or not distractions in the environment will affect memory performance. I recruit 25 students to take part in my study and I randomly assign them into one of two groups: a memory task in a distraction free environment or a memory task in an environment where several distractions will be presented. I measure the number of errors that each participant makes in their respective conditions. Test the hypothesis that those in the distracted group have more errors than those in the no distraction group at an alpha of 0.05.
|
Distraction Free Environment Number of errors made |
Environment with Distraction Number of Errors made |
|
2 |
3 |
|
5 |
5 |
|
2 |
2 |
|
3 |
2 |
|
1 |
6 |
|
2 |
5 |
|
4 |
4 |
|
0 |
4 |
|
2 |
2 |
|
1 |
3 |
|
1 |
3 |
|
0 |
1 |
|
2 |
- What are your degrees of freedom?
- What is your critical t value (from the t table)?
- What is the mean difference?
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I want to study whether or not distractions in the environment will affect memory performance. I recruit 25 students to take part
in my study and I randomly assign them into one of two groups: a memory task in a distraction free environment or a memory
task in an environment where several distractions will be presented. I measure the number of errors that cach participant makes in
their respective conditions. Test the hypothesis that those in the distracted group have more errors than those in the no distraction
group at an alpha of 0.05.
Distraction Free Environment
Environment with Distraction
Number of errors made
Number of Errors made
3
2.
5.
I
2.
3.
9.
4
2
2.
3
1.
2.
c. What are your degrees of freedom?
d. What is your critical t value (from the t table)?
e. What is the mean difference?
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