(d) Compute the linear correlation coefficient between MRI count and IQ for females. Compute the linear correlation coefficient between MRI count and IQ for males. The linear correlation coefficient for females is 0.434. The linear correlation coefficient for males is 0.694 (Round to three decimal places as needed.) Are MRI count and IQ linearly related? Because the correlation coefficient for females is data set, coefficient, is (Round to three decimal places as needed.) and the absolute value of this correlation coefficient, is relation exists between MRI count and IQ for females. Because the correlation coefficient for males is relation exists between MRI count and IQ for males. than the critical value for the male data set, than the critical value for the female and the absolute value of this correlation
(d) Compute the linear correlation coefficient between MRI count and IQ for females. Compute the linear correlation coefficient between MRI count and IQ for males. The linear correlation coefficient for females is 0.434. The linear correlation coefficient for males is 0.694 (Round to three decimal places as needed.) Are MRI count and IQ linearly related? Because the correlation coefficient for females is data set, coefficient, is (Round to three decimal places as needed.) and the absolute value of this correlation coefficient, is relation exists between MRI count and IQ for females. Because the correlation coefficient for males is relation exists between MRI count and IQ for males. than the critical value for the male data set, than the critical value for the female and the absolute value of this correlation
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
Are MRI count and IQ linearly related?
Because the correlation coefficient for females is negative/positive
and the absolute value of this correlation coefficient,
relation exists between MRI count and IQ for females. Because the correlation coefficient for males is negative/positive and the absolute value of this correlation coefficient,
and the absolute value of this correlation coefficient,
enter your response here#, is greater/not greater than enter your response here#,
the critical value for the female data set,no/a positive/a negativerelation exists between MRI count and IQ for females. Because the correlation coefficient for males is negative/positive and the absolute value of this correlation coefficient,
enter your response here#, is greater/not greater than the critical value for the male data set,
enter your response here#,no/a positive/a negative relation exists between MRI count and IQ for males.
(Round to three decimal places as needed.)
Critical value table
3 0.997
4 0.950
5 0.878
6 0.811
7 0.754
8 0.707
9 0.666
10 0.632
11 0.602
12 0.576
13 0.553
14 0.532
15 0.514
16 0.497
17 0.482
18 0.468
19 0.456
20 0.444
21 0.433
22 0.423
23 0.413
24 0.404
25 0.396
26 0.388
27 0.381
28 0.374
29 0.367
30 0.361

Transcribed Image Text:**Educational Exercise: Analyzing Correlation Between Brain Size and IQ**
Researchers investigated if an individual's brain size is associated with mental capacity. A sample consisting of 5 females and 5 males was selected, and both MRI image pixel counts and IQ scores were measured. The data provided consists of MRI counts and IQ scores for each participant.
**Data Table:**
- **Females:**
- MRI: 833,868 | IQ: 132
- MRI: 790,619 | IQ: 135
- MRI: 991,305 | IQ: 138
- MRI: 852,244 | IQ: 126
- MRI: 856,472 | IQ: 140
- **Males:**
- MRI: 1,079,550 | IQ: 141
- MRI: 924,059 | IQ: 135
- MRI: 1,038,438 | IQ: 139
- MRI: 949,495 | IQ: 136
- MRI: 1,001,121 | IQ: 140
**Instructions for Analysis:**
Consider the following computational tasks and questions:
1. **Compute Linear Correlation Coefficients:**
- For females, the correlation coefficient is **0.434**.
- For males, the correlation coefficient is **0.694**.
- Coefficients are rounded to three decimal places.
2. **Inquiry on Linear Relationship:**
- Are MRI counts and IQ scores linearly related?
3. **Based on the Correlation Coefficient for Females:**
- Compare the correlation coefficient with the critical value for the female data set.
- If the absolute value of the correlation coefficient is greater than the critical value, a significant relationship exists between MRI count and IQ.
4. **Based on the Correlation Coefficient for Males:**
- Determine the relationship by comparing the absolute value of the correlation coefficient to the critical value for the male data set.
**Completing this analysis on brain size and IQ provides insight into whether a statistical relationship exists within the dataset based on the observed linear correlation coefficients.**
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