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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 is your pooled sample variance and estimated standard error?   What is your obtained t statistic?    What conclusion do you draw?

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 is your pooled sample variance and estimated standard error?   What is your obtained t statistic?    What conclusion do you draw?

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.5: Interpreting Data
Problem 1C
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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

  



  1. What is your pooled sample variance and estimated standard error?

 

  1. What is your obtained t statistic? 

 

  1. What conclusion do you draw? 



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Transcribed Image Text:4) 3. 2. 2. b Success Confirmation of Qu... Bb Homework and Submission... Untitled document - Google.. What is the difference betw... Untitled document a Share File Edit View Insert Format Tools Add-ons Help Last edit was second... n Ą, P Normal text Times New... BIUA 00% 6 31 4. 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 ask 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 I group at an alpha of 0.05. Distraction Free Environment Environment with Distraction Number of errors made Number of Errors made 3 2 2 2. 2 9. 5 4 4. 2 2 3 1. 3 f. What is your pooled sample variance and estimated standard error? h. What is your obtained t statistic? i. What conclusion do you draw? 19-5 étv
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