Correlations Exercises SPSS Output: What is the strongest correlation in the matrix? (Provide the correlation value and the names of variables) What is the weakest
Answer the following questions using the Correlations Exercises SPSS Output provided in the attachment.
- What is the strongest correlation in the matrix? (Provide the correlation value and the names of variables)
- What is the weakest correlation in the matrix? (Provide the correlation value and the names of variables)
- How many original correlations are present on the matrix?
- What does the entry of 1.00 indicate on the diagonal of the matrix?
- Indicate the strength and direction of the relationship between body mass index (BMI) and physical health component subscale.
- Which variable is most strongly correlated with BMI? What is the correlational coefficient? What is the sample size for this relationship?
- What is the mean and standard deviation for BMI and doctor visits?
- What is the mean and standard deviation for weight and BMI?
- Describe the strength and direction of the relationship between weight and BMI.
- Describe the scatterplot. What information does it provide to a researcher?
include a APA title page, introduction, summary, and references.
Week 6 – Correlations SPSS Outputs
Descriptive Statistics
Mean Std. Deviation N
Number of doctor visits, past
12 mo
6.80 12.720 997
Body Mass Index 29.2226 7.37893 970
SF12: Physical Health
Component Score,
standardized
45.11422 10.840059 893
SF12: Mental Health
Component Score,
standardized
46.82843 10.806477 893
Correlations
Number of
doctor visits,
past 12 mo
Body Mass
Index
SF12: Physical
Health
Component
Score,
standardized
SF12: Mental
Health
Component
Score,
standardized
Number of doctor visits, past
12 mo
Pearson Correlation 1 .131** -.316** -.133**
Sig. (2-tailed) .000 .000 .000
N 997 967 890 890
Body Mass Index Pearson Correlation .131** 1 -.134** -.078*
Sig. (2-tailed) .000 .000 .022
N 967 970 866 866
SF12: Physical Health
Component Score,
standardized
Pearson Correlation -.316** -.134** 1 .168**
Sig. (2-tailed) .000 .000 .000
N 890 866 893 893
SF12: Mental Health
Component Score,
standardized
Pearson Correlation -.133** -.078* .168** 1
Sig. (2-tailed) .000 .022 .000
N 890 866 893 893
**. Correlation is significant at the 0.01 level (2-tailed).
*. Correlation is significant at the 0.05 level (2-tailed).
Scatterplot
Descriptive Statistics
Mean Std. Deviation N
Body Mass Index 29.2226 7.37893 970
Weight-pounds 171.4624 45.44083 971
Correlations
Body Mass
Index Weight-pounds
Body Mass Index Pearson Correlation 1 .937**
Sig. (2-tailed) .000
N 970 970
Weight-pounds Pearson Correlation .937** 1
Sig. (2-tailed) .000
N 970 971
**. Correlation is significant at the 0.01 level (2-tailed).
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