MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Characteristics of the Study Sample (N = 842)

 

Sample Characteristic

Frequency (N)

Percentage or Mean (SD)

Range

Gender

Female

Male

 

408

434

 

48.5%

51.5%

 

Age (years)

842

55.1 (5.3)

44–67

Race/ethnicity

White, not Hispanic

African American

 

701

141

 

83.3%

16.7%

 

Smoking status

Nonsmoker

Currently smokes <1 pack/day

Currently smokes 1+ packs/day

 

698

91

53

 

82.9%

10.8%

6.3%

 

BMI

831

24.9 (4.1)

18.1–36.3

 

  1. Which variables in the table, if any, were measured on a nominal scale?

  2. Which variables in the table, if any, were measured on an ordinal scale?

  3. Which variables in the table, if any, were measured on an interval scale?

  4. Which variables in the table, if any, were measured on a ratio scale?

  5. Which measure(s) of central tendency, if any, are presented in this table

  6. Which measure(s) of variability, if any, are presented in this table

  7. If age were normally distributed, approximately what percentage of the sample would be older than 60 years?

  8. If BMI were normally distributed, approximately what percent of the sample would have a BMI higher than 33?

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  1. If age were normally distributed, approximately what percentage of the sample would be older than 60 years?

  2. If BMI were normally distributed, approximately what percent of the sample would have a BMI higher than 33?

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  1. If age were normally distributed, approximately what percentage of the sample would be older than 60 years?

  2. If BMI were normally distributed, approximately what percent of the sample would have a BMI higher than 33?

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