IS428 2016-17 Term1 Assign2 Wang Ziteng

Abstract

 Workplace security has always been an important issue for Singapore Minister of Manpower. To develop a
  productive workforce and progressive workplaces, MOM should know more about the workplace injuries in
  different aspects. Through 2014, the data regarding to workplace injuries was collected by all the employees
 in Singapore. This report will focus on the workplace injuries issue and give analysis based
 on Workplace Injuries Data 2014.

Theme of Interest

 To know more about the situation of workplace injuries and better deal with it, we need to know the 
overall trend of the number of injuries and injuries situation in different groups according 
to different categorizations. Thus, the government can make more specific policies to help employees.

Analytical & Investigation Questions

1. What is the overall trend of number of injuries through the year?
2. What is the overall trend of number of injuries in each day of the week through the year?
3. What is the injuries situation in different occupation?
4. Does the months worked matters?
5. What is the frequency of different causes of injuries?

Data Preparation

1. Data Selection
From all the 48 variables, I choose 11 of them.
Accident Day
Accident Weekday
Accident Month
Major Industry
Sub Industry
Body Pars Injured
Nature of Injury
Accident Type level 2 Category
Cause
Occupation

       Months worked

2. Check the distribution of the fields

 To check the categorized data and numerical data and see whether they are valid. For categorized data,
 I need to know whether the categorizations are typed correct.  For numerical data, I need to see whether 
the distribution make sense.

3. Lowercase Formatting (Occupation)

 I noticed that the format of Occupation is not consistent which will make it troublesome when using this
 field. The same occupation will be treated as different ones. So I used JMP Pro to 
lowercase the data.

Data Visualization

1. What is the overall trend of number of injuries through the year?

• Through the chart, we can see that the number of injuries increases dramatically from Jan to March

2. What is the overall trend of number of injuries in each day of the week through the year?

• From the chart, we can know the trend in each weekday through the year.Tuesday and Friday has the highest average number of injuries.

3. What is the injuries situation in different occupation?

• From the Mosaic plot, we can clearly see the injuries situation in each occupations.
  

4. Does the months worked matters?
5. What is the frequency of different causes of injuries?

Tools

1. Tableau Desktop 2. JMP Pro 12