PHC 121 Saudi Electronic University Introduction to Biostatistics Questions

College of Health SciencesDepartment of Public Health
ASSIGNMENT
COVER SHEET
Course name:
Introduction to Biostatistics
Course number:
PHC 121
CRN
XXXXX
Use the data set provided, answer the following questions:Q1- Q4
A study was conducted to identify the changes in triglyceride levels of
subjects followed by a specific diet. The diet consists primarily of protein and
animal fat, restricting carbohydrate intake. The study participants followed the
diet with length of time varying from 3 to 17 weeks (Datasheet is provided in
excel attachment)
Q1.Write a statistical summary for participant’s demographic details that
includes variable age, gender, weeks on diet & physical activity?
Mark -2
Q2.Compute most appropriate measure of central tendency & dispersion to
report the variable “changes in triglyceride level” and address its worthiness?
Mark – 2
Q3.What is the appropriate statistical test for identifying significance difference
in the “changes in triglyceride levels” in male and females&Why?
Mark – 1
Assignment title or task:
(You can write a
question)
Q4.What are the assumptions underlying the test you identified in Question-3?
Mark -1
Q5:In a cross sectional study on coronary heart disease (CHD), the
smoking and CHD status are summarized below
Smoking
Yes
No
Total
a.
CHD
Present
55
552
607
Total
Absent
84
1927
2011
139
2479
2618
What is the appropriate statistical test for identify the association
betweensmoking and CHD ?Mark -1
b. What are the assumptions and application of the proposed test
identified for Q.5aMark – 2
College of Health Sciences
Department of Public Health
c. Assume that  is set to 0.05for a two-tailed test and the estimated
p-value is 0.0012, What do you conclude? Mark – 1
Student name:
XXXXX
Student ID:
XXXXX
Submission date:
XXXXX
Instructor name:
xxxxxx
Grade:
…. Out of 10
Submission Guidelines:
•
•
•
•
•
Write 1-2 page(s) essay not less than 200 words and maximum of 500 words excluding
references and data table with a font of Times New Roman and size of 12. The line
spacing should be 1.5.
Heading should be Bold and text color should be Black
AVOID PLAGIARISM
Assignments must be submitted with the filled Cover Page (Students information should
be filled on the first page of the document)
Assignments must carry at least TWOup to date references using APA style. Please see
below web link about how to cite APA reference style. Click or tap to follow the link:
https://guides.libraries.psu.edu/apaquickguide/intext.
College of Health Sciences
Department of Public Health
•
Assignment should be submitted on time by the end of Week 10
(Thursday 3/11/2022 at 11:59 pm)
participant
Gender
NoAge ( Yrs)
Weeks on Diet intial weight (Kg)
Final Weight(kg)
Weight difference
1F
2M
3M
4F
5M
6F
7M
8F
9M
10 F
11 M
12 F
13 M
14 F
15 F
16 F
17 M
18 F
19 M
20 F
25
30
28
30
35
28
32
30
26
38
42
35
40
38
42
32
38
28
26
43
10
11
17
4
9
6
3
6
4
4
4
7
8
7
7
14
13
4
9
8
58
63
64
65
60
57,3
62,7
63,6
71,4
72,7
49,6
78,2
65
71,8
71,8
70,5
69
55,9
60
68
49,6
58
55,9
54,6
56,7
55,5
59,6
59,6
69,1
70,5
47,1
75
53,2
68,6
66,8
66,8
55,9
54,6
56,7
55,5
8,4
5
8,1
10,4
3,3
1,8
3,1
4
2,3
2,2
2,5
3,2
11,8
3,2
5
3,7
13,1
1,3
3,3
12,5
Triglyceride level(mg/dl )
Baseline
final
159
93
200
174
148
148
185
180
220
89
184
182
110
88
134
84
220
174
148
238
“Changes in Triglyceride level “(mg/dl)
144
80
160
134
93
90
130
160
180
77
140
130
100
80
110
78
180
134
93
180
15
13
40
40
55
58
55
20
40
12
44
52
10
8
24
6
40
40
55
58
Physical activity
No
No
yes
No
Yes
yes
No
Yes
No
No
Yes
No
No
Yes
No
No
yes
No
Yes
yes