(Need someone who can complete this in 24 hours)
Answer the following questions using the Week 6 Correlations Exercises SPSS Output provided in this week’s Learning Resources.
- 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?
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).