Based on above statement, plan a procedure for obtaining a sample of each type: simple random, systematic, stratified, cluster and convenience sampling method.  

Instructions:

Break into Five groups

You are given 15 minutes to discuss with your group members-

Group 1 - Simple random sampling method

Group 2 - Systematic sampling method

Group 3 - Stratified sampling method

Group 4 - Cluster sampling method

Group5-Convenience sampling method

1. Defining the population

The target population is all 10,000 undergraduate students enrolled in the main campus of Universiti Sains

Malaysia (USM). Every undergraduate student is eligible to participate in the survey.

2. Choosing your sample size

Based on the Krejcie and Morgan Table, for a population of 10,000, the recommended sample size at a 95% confidence level is 370 students. We will survey 370 students to ensure her results are statistically valid.

3. Listing the population

Obtain a complete and up-to-date list of all 10,000 undergraduate students. This list serves as the sampling frame.

4. Assigning numbers to cases

Assign each student a unique number from 1 to 10,000 to ensure every individual

is identifiable in the sampling frame.

5. Calculating the sampling interval

Sampling Interval, k

= population size/ sample

= 10000/370

= 27

We will select every 27th student

6. Selecting the first unit

We will use a random number generator to select the starting point within the range of 1 to 27. The random number generator picks 3 as the starting point.

7. Selecting your sample

Begin at the starting point (3) and select every 27th student from the list:

First sample (1st) : 3

Second sample (2nd): 3 + 27 = 30

Third sample (3rd) : 30 + 27 = 57

.....

Final sample (370th): 9963 + 27 = 9990

Group: Tharshini, Sue May, Vivi, Tina, Lei

Define the population

10,000 students in USM

Step 2

Choosing your sample size

Based on the Krejcie and Morgan Table, for a population of 10,000 the recommended sample size at 95% confidence level is 370 students

Step 3

List the population

2024 student registry from Student Affairs Dept.

Step 4

Assigning numbers to the unit

Assign a unique number to each student from 1 to 10,000

Step 5

Find random numbers

Use a random number generator to generate 370 random numbers and ensure no duplicate

Step 6

Select your sample

Contact those students and conduct our survey

60:40 ratio female to male students

Step 1: Defining the Population:

• The population consists of all 10,000 students enrolled at Universiti Sains Malaysia (USM).

• The goal is to survey students' Facebook usage

  
  

Step 2: Choose the Sample Size:

• Based on the Krejcie and Morgan Table, for a population of 10,000, the recommended sample size at a 95%, confidence level is 370 students.

• Nora decides to survey 370 students to ensure her results are statistically valid.

Step 3: Choose the Sampling Locations:

• Nora decides to carry out the online form survey at the cafeteria, library and study lounges

• These locations increase the likelihood of obtaining a diverse range of students in terms of background, year of study, and study habits

  
  

Step 4: Decide on the Sampling Method:

• Approach students in these selected areas, and explaining the purpose of study

• Collect data from students who agree to participate by administering a survey, through a digital form.

  
  

Step 5: End Sampling Once the Desired Sample Size is Met

Team members:

1. Ayda

2. Catherine (Cheah Khar Yin)

3. Emma

4. Faeiqah

5. Shafiqah

Name:LYUJIAQI+zhangyihan+HUOTINGYU+HUANGQILUN+JIANGZHICHENG+SHALAGULI

1.    Define the Population:

(1)          The population consists of all 10,000 undergraduate students enrolled at the main campus of Universiti Sains Malaysia (USM)

(2)          The goal was to investigate the use of Facebook by USM students

2.    Divide the population into clusters: Divide the 10,000 students in the university by grade into 4 different grades (4 clusters)

3.    Choose Clusters:

Identify the number of clusters to be sampled:

(1)          Assume that USM has four grades, 2000 in 1st grade, 3000 in 2nd grade, 2500 in 3rd grade, and 2500 in 4th grade

(2)          We decided to randomly select three grades for the survey

4.    List the Population in Selected Clusters:

We choose first, second and third year

5.    Decide on the Sampling Method within Clusters:

A total of 370 students were selected from the three grades

6.    Collect data:

(1)          Sample of all students in grades 1, 2, 3, and 4 and survey of every student in grades 1, 2, and 3

(2)          If using random sampling,k=7500/370~20,

1(first unit)

1+20=21(second unit)

21+20=41(third unit)

Continue this process until 370 students are selected