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statistics

Nursing 6692

Module 2 Assignment

Summer 2024

Name:

Respond to each of the following on this document—do not delete any of the content. Save the document as a Word file and upload to the appropriate site in the course.

1. Based on the following correlation matrix, what can be said about the height in inches and percent body fat? Be sure to include whether the relationship is strong, weak, etc., the direction of the relationship if present (direct/indirect), and include the
r,
n, and
p values (20 points).

Correlations

grade in school

height in inches

weight in pounds

percent body fat

calculated BMI 1

grade in school

Pearson Correlation

1

.657**

.439**

.095

.221**

Sig. (2-tailed)

.000

.000

.132

.000

N

250

250

250

250

250

height in inches

Pearson Correlation

.657**

1

.683**

.276**

.405**

Sig. (2-tailed)

.000

.000

.000

.000

N

250

250

250

250

250

weight in pounds

Pearson Correlation

.439**

.683**

1

.777**

.919**

Sig. (2-tailed)

.000

.000

.000

.000

N

250

250

250

250

250

percent body fat

Pearson Correlation

.095

.276**

.777**

1

.891**

Sig. (2-tailed)

.132

.000

.000

.000

N

250

250

250

250

250

calculated BMI 1

Pearson Correlation

.221**

.405**

.919**

.891**

1

Sig. (2-tailed)

.000

.000

.000

.000

N

250

250

250

250

250

**. Correlation is significant at the 0.01 level (2-tailed).

2. Using the HSK SPSS data file, run correlations between height in inches (height1) and grade in school (grade). Be sure to use the correct variables. Copy and paste the output below. (5 points)

3. What is the coefficient of determination based on the correlation between height in inches (height1) and weight in pounds (weight1) and how much of the variance is unaccounted for?
Show your math calculations. (5 points)

4. During data collection, research participant # 57 scored an 98 on an exercise and diet knowledge questionnaire. Among 250 participants in the study, the mean score for the questionnaire was 78 with a standard deviation of 10. What is the z score for participant # 57? (
Show your math calculations) (10 points)

5. Based on your calculations, what is the percentile rank for participant # 57? (Use Table B.1 of the textbook appendices to calculate—
show your math calculations) (10 points)

6. What does this indicate about participant # 57? (5 points)

7. Fill in the empty cells for the following table (45 points):

Variable X

Level of Measurement for Variable X

Variable Y

Level of Measurement for Variable Y

Correlation statistic you would use to examine the X and Y variables

Voting preference

Gender

Social Class (low, medium, high)

Rank in high School Graduating Class

Family Configuration (two parent or single parent)

Grade Point Average

Height Converted to Rank

Weight Converted to rank

Number of problems solved on a test

Age in years

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