In Born together-Reared apart: the Landmark Minnesota twin study (2012), Nancy Segal discusses the efforts of research psychologists at the University of Minnesota to understand similarities and differences between twins by studying sets of twins who were raised separately. The Excel Online file below contains critical reading SAT scores for several pairs of identical twins (twins who share all of their genes), one of whom was raised in a family with no other children (no siblings) and one of whom was raised in a family with other children (with siblings). Construct a spreadsheet to answer the following questions. Due to a recent change by Microsoft you will need to open the XLMiner Analysis ToolPak add-in manually from the home ribbon. Screenshot of ToolPak Open spreadsheet a. What is the mean difference between the critical reading SAT scores for the twins raised with no siblings and the twins raised with siblings? (to 2 decimals) b. Provide a 90% confidence interval estimate of the mean difference between the critical reading SAT scores for the twins raised with no siblings and the twins raised with siblings. ) (to 2 decimals) ( c. Conduct a hypothesis test of equality of the critical reading SAT scores for the twins raised with no siblings and the twins raised with siblings. p-value is (to 4 decimals) At a = .05, what is your conclusion? Can conclude © Check My Work that there is a difference between the mean scores for the no sibling and with sibling groups. Reset Problem
In Born together-Reared apart: the Landmark Minnesota twin study (2012), Nancy Segal discusses the efforts of research psychologists at the University of Minnesota to understand similarities and differences between twins by studying sets of twins who were raised separately. The Excel Online file below contains critical reading SAT scores for several pairs of identical twins (twins who share all of their genes), one of whom was raised in a family with no other children (no siblings) and one of whom was raised in a family with other children (with siblings). Construct a spreadsheet to answer the following questions. Due to a recent change by Microsoft you will need to open the XLMiner Analysis ToolPak add-in manually from the home ribbon. Screenshot of ToolPak Open spreadsheet a. What is the mean difference between the critical reading SAT scores for the twins raised with no siblings and the twins raised with siblings? (to 2 decimals) b. Provide a 90% confidence interval estimate of the mean difference between the critical reading SAT scores for the twins raised with no siblings and the twins raised with siblings. ) (to 2 decimals) ( c. Conduct a hypothesis test of equality of the critical reading SAT scores for the twins raised with no siblings and the twins raised with siblings. p-value is (to 4 decimals) At a = .05, what is your conclusion? Can conclude © Check My Work that there is a difference between the mean scores for the no sibling and with sibling groups. Reset Problem
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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Transcribed Image Text:In Born together-Reared apart: the Landmark Minnesota twin study (2012), Nancy Segal discusses the efforts of research psychologists at the University of Minnesota to understand
similarities and differences between twins by studying sets of twins who were raised separately. The Excel Online file below contains critical reading SAT scores for several pairs of
identical twins (twins who share all of their genes), one of whom was raised in a family with no other children (no siblings) and one of whom was raised in a family with other children
(with siblings). Construct a spreadsheet to answer the following questions.
Due to a recent change by Microsoft you will need to open the XLMiner Analysis ToolPak add-in manually from the home ribbon. Screenshot of ToolPak
X
Open spreadsheet
a. What is the mean difference between the critical reading SAT scores for the twins raised with no siblings and the twins raised with siblings?
(to 2 decimals)
b. Provide a 90% confidence interval estimate of the mean difference between the critical reading SAT scores for the twins raised with no siblings and the twins raised with siblings.
) (to 2 decimals)
(
c. Conduct a hypothesis test of equality of the critical reading SAT scores for the twins raised with no siblings and the twins raised with siblings.
p-value is
(to 4 decimals)
At a = .05, what is your conclusion?
I
Can conclude
Check My Work
that there is a difference between the mean scores for the no sibling and with sibling groups.
Reset Problem
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A
SAT Score
No Siblings
482
619
567
414
439
397
481
636
518
724
603
656
497
602
577
583
551
548
538
637
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Data
Arial
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SAT Score With
Siblings
425
566
633
442
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449
432
536
457
658
454
603
436
570
516
606
522
622
516
623
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Change in SAT
Score (di)
Page Layout
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Calculation Mode: Automatic Workbook Statistics
B
Formulas
C.I.Lower Limit
C.I.Upper Limit
↓
Part b
The 90% confidence interval
Part c
Degrees of Freedom
Test statistic
p-value
E
Part a
T Test: Two-Sample Assuming Equal Variances
Data
Review
Significance Level (Alpha)
Can we conclude that there is difference
between the mean scores? (Enter "Can
conclude" or "Cannot conclude")
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0.01
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