At this point, what can you conclude about Group 1? Group 1 has significantly higher VIQ than Group 2 O Group 1 has significantly lower VIQ than Group 2 Group 1 does not differ in VIQ from Group 2 O None of the above
At this point, what can you conclude about Group 1? Group 1 has significantly higher VIQ than Group 2 O Group 1 has significantly lower VIQ than Group 2 Group 1 does not differ in VIQ from Group 2 O None of the above
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
VIQ = Verbal IQ
Group 1 = 5-25 Years Old
Group 2 = 26- 59 Years Old
Group 3 = 60- 92 Years Old
Transcribed Image Text:**Question:**
At this point, what can you conclude about Group 1?
**Options:**
- ○ Group 1 has significantly higher VIQ than Group 2
- ○ Group 1 has significantly lower VIQ than Group 2
- ○ Group 1 does not differ in VIQ from Group 2
- ○ None of the above
**Note:** VIQ refers to Verbal Intelligence Quotient. The question is aimed at assessing one's understanding or analysis of data related to the VIQ of different groups. It invites users to compare VIQ scores between Group 1 and Group 2 and draw a conclusion based on this information.
![**Descriptive Statistics: WAIS-R Verbal IQ**
- **Groups (N):**
1. Group 1: 185 participants
2. Group 2: 380 participants
3. Group 3: 185 participants
- Total: 750 participants
- **Mean WAIS-R Verbal IQ Scores:**
1. Group 1: 105.66
2. Group 2: 107.99
3. Group 3: 113.45
- Total Mean: 108.77
- **Standard Deviation:**
1. Group 1: 11.896
2. Group 2: 12.935
3. Group 3: 11.933
- Total: 12.748
- **Standard Error:**
1. Group 1: 0.875
2. Group 2: 0.664
3. Group 3: 0.877
- Total: 0.465
- **95% Confidence Interval for Mean:**
1. Group 1: [103.94, 107.39]
2. Group 2: [106.69, 109.30]
3. Group 3: [111.72, 115.18]
- Total: [107.85, 109.68]
- **Minimum and Maximum Scores:**
1. Group 1: Min 81, Max 138
2. Group 2: Min 67, Max 150
3. Group 3: Min 78, Max 146
- Total: Min 67, Max 150
**ANOVA Results: WAIS-R Verbal IQ**
- **Sum of Squares:**
- Between Groups: 6072.641
- Within Groups: 115648.057
- Total: 121720.699
- **Degrees of Freedom (df):**
- Between Groups: 2
- Within Groups: 747
- Total: 749
- **Mean Square:**
- Between Groups: 3036.321
- Within Groups: 154.817
- **F-Value: 19.612**](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F9b958f82-10fa-4877-816b-973c177a7b8f%2F0c588aca-185d-47d6-bbb3-25b8e45d8321%2Fe81k2lm_processed.jpeg&w=3840&q=75)
Transcribed Image Text:**Descriptive Statistics: WAIS-R Verbal IQ**
- **Groups (N):**
1. Group 1: 185 participants
2. Group 2: 380 participants
3. Group 3: 185 participants
- Total: 750 participants
- **Mean WAIS-R Verbal IQ Scores:**
1. Group 1: 105.66
2. Group 2: 107.99
3. Group 3: 113.45
- Total Mean: 108.77
- **Standard Deviation:**
1. Group 1: 11.896
2. Group 2: 12.935
3. Group 3: 11.933
- Total: 12.748
- **Standard Error:**
1. Group 1: 0.875
2. Group 2: 0.664
3. Group 3: 0.877
- Total: 0.465
- **95% Confidence Interval for Mean:**
1. Group 1: [103.94, 107.39]
2. Group 2: [106.69, 109.30]
3. Group 3: [111.72, 115.18]
- Total: [107.85, 109.68]
- **Minimum and Maximum Scores:**
1. Group 1: Min 81, Max 138
2. Group 2: Min 67, Max 150
3. Group 3: Min 78, Max 146
- Total: Min 67, Max 150
**ANOVA Results: WAIS-R Verbal IQ**
- **Sum of Squares:**
- Between Groups: 6072.641
- Within Groups: 115648.057
- Total: 121720.699
- **Degrees of Freedom (df):**
- Between Groups: 2
- Within Groups: 747
- Total: 749
- **Mean Square:**
- Between Groups: 3036.321
- Within Groups: 154.817
- **F-Value: 19.612**
Expert Solution
Step 1
Confidence interval give a range of values for the unknown parameter of the population. The width of confidence interval increases with increase in confidence level.
Measure of central tendency measures the central or average value of a dataset. Measured of dispersion measures the spread of the data.
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