Statistic

STAT 509 Assignment# 1 Name_______________________

Instructions:

1. Due Date

· April 06 @ 11:50pm

2. Assignment submission:

· When you submit an electronic file (assignment) you must use the following format: This is for: LAST NAME (in upper case), your first name, the course code, activity/assignment number and file format

· For example: SMITHJohn-STAT509-A1.doc

Assignment:

Question1: Following is a dictionary for a data set. The data collected on a number of people from Cornwall, Ontario, Canada who attended a lifestyle intervention program (Coronary Health Improvement Project, or better known as CHIP) consisting of a series of lectures and personal counseling sessions every day for a five day period. This data set consists of a number of demographic and clinical variables.

Name Description

AGE AGE (yrs)

SEX GENDER

Value Label

1 MALE

2 FEMALE

MARITAL MARITAL STATUS Value Label

1 SINGLE

2 MARRIED

3 DIVORCED

4 WIDOWED

EXERCISE BASELINE EXERCISE LEVEL Value Label

1 NONE

2 MILD

3 MODERATE

4 VIGOROUS

SMOKE BASELINE SMOKING STATUS Value Label

1 SMOKER

2 NONSMOKER

HEIGHT HEIGHT (in.)

WEIGHT BASELINE WEIGHT (lbs)

FRAME BODY FRAME SIZE Value Label

1 SMALL

2 MEDIUM

3 LARGE

SYSBP BASELINE SYSTOLIC BLOOD PRESSURE (mmHg)

DIABP BASELINE DIASTOLIC BLOOD PRESSURE (mmHg)

PULSE BASELINE PULSE (RESTING)

GLUCOSE BASELINE GLUCOSE LEVEL (mmol/l)

CHOL BASELIINE CHOLESTEROL (mmol/l)

TRIGLY BASELINE TRIGLYCERIDES (mmol/l)

Using the above data dictionary, identify the type of variable (scale, ordinal, or nominal) for each item and units of measurement if applicable in Table1 below:

Table 1: Variable Information
Variable	Label	Measurement Level	Measurement Unit
age	AGE (yrs)
sex	GENDER
marital	MARITAL STATUS
exercise	EXERCISE LEVEL
smoke	SMOKING STATUS
height	HEIGHT (in.)
weight	WEIGHT (lbs)
frame	BODY FRAME SIZE
sysbp	SYSTOLIC BLOOD PRESSURE (mmHg)
diabp	DIASTOLIC BLOOD PRESSURE (mmHg)
pulse	PULSE (RESTING)
glucose	GLUCOSE LEVEL
chol	CHOLESTEROL (mg%)
trigly	TRIGLYCERIDES (mmol/l)

Question 2 a. Calculate the following for the BMI variable (Show your work):

· Mean

· Median

· Mode

· Range

· Variance

· Standard Deviation

· Interquartile Range

· Draw Box - Whisker plot

BMI

17

35

23

19

24

65

26

30

29

27

23

25

20

Question 2 b: What is the best way to summarize the variable BMI in the above question (Mean with standard deviation OR median with range)?

(Hint: Look if there is any outliers in the Box – Whisker plot)