3Big Data Analyst QuestionnaireWithin this document are fo.docx

3
Big Data Analyst Questionnaire
Within this document are four different questions. Each
question is structured in the following manner:
1) Premise
- Contains any needed background information
2) Request
- The actual question, what you are to solve
3) Notes
- A space if you feel like including notes of any kind for the
given question
Please place your answer for each question in a separate file,
following this naming convention:
Name_Qn.docx, where n = the question number (i.e., 1, 2 ...).
So the file for the first question should be named
‘Name_Q1.docx’.
When complete, please package everything together and send
email responses to the designated POCs.

Page | 1
Premise:
You have a table named “TRADES” with the following six
columns:
Column Name
Data Type
Description
Date
DATE
The calendar date on which the trade took place.
Firm
VARCHAR(255)
A symbol representing the Broker/Dealer who conducted the
trade.
Symbol
VARCHAR(10)
The security traded.
Side
VARCHAR(1)
Denotes whether the trade was a buy (purchase) or a sell (sale)
of a security.
Quantity
BIGINT
The number of shares involved in the trade.
Price
DECIMAL(18,8)

The dollar price per share traded.
You write a query looking for all trades in the month of August
2019. The query returns the following:
DATE
FIRM
SYMBOL
SIDE
QUANTITY
PRICE
8/5/2019
ABC
123
B
200
41
8/5/2019
CDE
456
B
601
60
8/5/2019
ABC
789
S
600
70
8/5/2019
CDE
789
S
600
70
8/5/2019
FGH

456
B
200
62
8/6/2019
3CDE
456
X
300
61
8/8/2019
ABC
123
B
300
40
8/9/2019
ABC
123
S
300
30
8/9/2019
FGH
789
B
2100
71
8/10/2019
CDE
456
S
1100
63
Questions:

1) Conduct an analysis of the data set returned by your query.
Write a paragraph describing your analysis. Please also note
any questions or assumptions made about this data.
2) Your business user asks you to show them a table output that
includes an additional column categorizing the TRADES data
into volume based Tiers, with a column named ‘Tier’.
Quantities between 0-250 will be considered ‘Small’, quantities
greater than ‘Small’ but less than or equal to 500 will be
considered ‘Medium’, quantities greater than ‘Medium’ but less
than or equal to 500 will be considered ‘Large’, and quantities
greater than ‘Tier 3’ will be considered ‘Very Large’ .
a. Please write the SQL query you would use to add the column
to the table output.
b. Please show the exact results you expect based on your SQL
query.
3) Your business user asks you to show them a table output
summarizing the TRADES data (Buy and Sell) on week-by-week
basis.
a. Please write the SQL query you would use to query this table.
b. Please show the exact results you expect based on your SQL
query.
Notes:
1
Premise:
You need to describe in writing how to accomplish a task. Your
audience has never completed this task before.
Question:
In a few paragraphs, please describe how to complete a task of
your choice. You may choose a task of your own liking or one
of the sample tasks below:
1) How to make a peanut butter and jelly sandwich
2) How to get leaves off a lawn

3) How to make a cup of tea
Notes:
2
Premise:
Below is a snapshot of data from two tables: “Orders” and
“Customers”, taken on 02/05/2016. You find the following
documentation:
· The ORDERS table gets updated at the end of every day
· The CUSTOMERS table gets updated at the end of every week
ORDERS Table
Field Name
Description
ORDER_DT
Date the order was placed.
ORDER_ID
A unique identifier for each order.
ORDER_STATUS
The status of an order.
CUSTOMER_ID
Identifies a unique customer.
CUSTOMERS table
Field Name
Description
CUSTOMER_ID
The unique identifier of the Customer trading in the market
CUSTOMER_STATUS
The Customer's account status. It should be ‘Active’ in order to

be eligible for Order processing.
CUSTOMER_FNAME
First name of a customer.
CUSTOMER_MNAME
Middle name of a customer.
CUSTOMER_LNAME
Last name of a customer.
GENDER
Gender of a customer.
AGE
Age of a customer.
Table Name: ORDERS
ORDER_DT
ORDER_ID
ORDER_STATUS
ORDER_STATUS_CD
CUSTOMER_ID
2/1/2016
1000002
Completed
S
4
2/2/2016
2000008
Processing
P
6
2/2/2016
2000009
Completed
S
7
2/2/2016
2000010
Completed

S
7
2/3/2016
3000008
Processing
P
6
2/3/2016
3000009
Cancelled
C
6
2/3/2016
3000010
Cancelled
C
4
2/3/2016
3000011
On Hold
H
3
2/3/2016
3000012
Processing
P
7
2/4/2016
4000005
Completed
S
6
(Continued on next page)

Table Name: CUSTOMERS
CUSTOMER_ID
STATUS
FNAME
MNAME
LNAME
GENDER
AGE
1
Active
John
Smith
M
70
2
Active
James
Emitt
Madison
M
68
3
Active
Joe
Anthony
Diggs
M
55
4
Inactive
Adam
Lambert
M
40

5
Active
Marcus
Dallas
M
81
6
Active
Steve
Eugene
Bullock
M
62
7
Active
Naomi
Patel
F
33
8
Active
Alexander
Pope
M
29
9
Inactive
Peter
Chandler
M
36

Any coding language can be used to query the data.
Question:
1) Your business user asks you to combine the details from
these two tables in one table output, without any duplicated
columns.
A. Please write the query you would use to query this (note
which language you are using).
B. Please show the exact results you expect based on your SQL
query.
C. If you make assumptions to complete the task, please
document them.
2) Through an investigation, your business user has learnt that
there has been an order that was processed successfully by
mistake.
A. Please write the query you would use to validate (or
disprove) this finding (note which language you are using).
B. Please show the exact results you expect based on your SQL
query.
C. If you make assumptions to complete the task, please
document them.
Notes:

Premise:
The following are stand-alone SQL questions. If you are unable
to answer a question, please document your approach and
proposed next steps. For each of the below, please show the
exact results that you expect based on your SQL query.
Question:
1) Is this a valid SQL statement?
SELECT CUSTOMERS.GENDER, count(DISTINCT
CUSTOMERS.CUSTOMER_ID), count(*), sum(DISTINCT
CUSTOMERS.CUSTOMER_ID)
FROM CUSTOMERS
GROUP BY CUSTOMERS.GENDER;
2) Is this a valid SQL statement?
SELECT CUSTOMERS.GENDER, count(DISTINCT
CUSTOMERS. CUSTOMER_ID), count(*), count(DISTINCT
CUSTOMERS.AGE)
FROM CUSTOMERS
GROUP BY CUSTOMERS.GENDER;
Notes:
Copyright © 2019 Pearson Education, Inc. 1-1
HR Strategy Model
3-5p. 8
6, De
ssler

Copyright © 2019 Pearson Education, Inc.
Fundamentals of Human Resource Management
Fifth Edition
Chapter 14
Improving
Occupational
Safety, Health, and
Risk Management
Chapter 14
Improving Occupational Safety,
Health, and Risk Management
3-7
Learning Objectives
1. Discuss OSHA and how it operates.
2. Explain in detail three basic causes of accidents.
3. Explain how to prevent accidents at work.

4. Describe how one company uses employee engagement
to improve workplace safety.
5. Discuss major health problems at work and how to
remedy them.
6. Discuss the main elements in an occupational security and
risk management program.
Copyright ©2016 Pearson Education, Inc. 8
LO1:
Discuss OSHA and How It Operates
Publishing as Prentice Hall
9-9
Employee Safety and Health:
an Introduction
10-10
an Introduction (1)

Occupational Safety & Health Act (1970)
“Preserve the nation’s human resources by
assuring as much as possible that every
worker has safe and healthy working
conditions.”
10-11
an Introduction (2)
• Created Occupational Safety & Health Agency
(OSHA)
– Enforces standards; “fair & effective” enforcement
– Conducts inspections, issues citations
• Covers ALL Federal employees
– Does not apply to state and local governments
• For Employers with 11 or more employees
– Required to maintain records of, and report occupational
injuries & illnesses…caused by exposure to environmental
factors associated with employment

Exceptions:
Self-employed
Farms employing immediate family members
an Introduction (3)
• Inspection priorities
– 5 Priorities, e.g. #1 Imminent danger
• Inspections by OSHA
• Penalties by OSHA
– Range from $5K - $70K; can be far higher
• Employer Responsibilities
– #1: Provide hazard-free workplace; work with OSHA
compliance officers
10-13
UnSafe Workplace Video (8:42)
1-14
https://www.youtube.com/watch?v=bcuxWxzsFhY
https://www.youtube.com/watch?v=8LqrjlqKhoQ

LO2:
Explain in detail three basic causes of
accidents.
9-15
What Causes Accidents?
1. Chance Occurrences
– E.g. Getting hit by a car; lightning
– Beyond management’s control
2. Unsafe Working Conditions
– E.g. Defective equipment, unsafe storage, faulty scaffolds
3. Unsafe Acts by Employees
– E.g. Operating or working at unsafe
speeds
10-16
LO3:
Explain how to prevent accidents.

9-17
How to Prevent Accidents (1)
1. Reduce unsafe conditions
– Protecting vulnerable workers
• Young workers, aging, women (e.q. safety equipment)
– Job Hazard Analysis
• What can go wrong?
• What are the consequences?
• How could it happen?
• What are contributing factors?
– Operational safety reviews
10-18
2. Reducing unsafe acts
– Supervisor’s role is to set the tone
– Use screening to reduce unsafe acts
– Provide safety training
– Use posters, incentives and positive
reinforcement

– Emphasize top-management commitment
10-19
• Foster culture of safety
– Supervisor’s role in safety
• E.g. Daily walkthroughs
• Written safety policies
• Regular safety & health inspections
• Safety awareness programs
– New employee training; trained supervisors
– Safety Committees
• Strategy and HR
– Do these support a safety culture?
10-20
Safety Video (9:03)
1-22
https://www.youtube.com/watch?v=jpRc4CFDn9Q

LO5:
Discuss major health problems at
work and how to remedy them.
9-24
Workplace Health Hazards (1)
Chemicals, air quality, and industrial hygiene
– OSHA standards list exposure limits for 600 chemicals
– OSHA requires companies monitor air for asbestos
exposure at work
– Air quality
• “Green” office buildings
10-25
Alcoholism and Substance Abuse

– Serious, widespread problem leads to declines in the quality
and quantity of work
– ~15% of U.S. workers…drunk, hungover, etc., in past year
10-26
Alcoholism and Substance Abuse, con’t
– ~13-Million use illicit drugs
10-27
“Drug overdoses [1,420] remain the No. 1 unnatural cause of
death
in Virginia [in 2016], a title held since 2013 when drug deaths
outpaced motor vehicle and gun-related deaths.” – WTOP, Apr
14, 2017
Challenges for HR regarding “420” culture?
Alaska – California – Colorado – Maine – Massachusetts –
Nevada –
Oregon - Washington - Washington, DC
Dealing with substance abuse
1. A drug-free workplace policy

2. Supervisor training
3. Employee education
4. Employee assistance
5. Drug testing
10-28
Burnout
The total depletion of physical and
mental resources caused by
excessive striving to reach an
unrealistic work-related goal.
10-29
Job stress and burnout
– Consequences for employers
• Diminished work performance, absenteeism, turnover,
grievances
– Reducing Your Own Job Stress
• Three steps: Develop Awareness, Adjust Attitudes, Take
Action
• More sleep, eat healthier, realistic deadlines

– What Employers Can Do
• Prevention & Intervention (when needed)
– Depression
• Recognize signs of depression
• Depression is an illness
10-30
• Computer monitor health problems
– Carpal tunnel syndrome
– Short-term eye problems
– Backaches, neck aches, etc.
10-31
• Infectious diseases
– International travel
• Centers for Disease Control alerts
– Workplace smoking
• Greater risks to others
• Higher absenteeism

• Increased cost of healthcare & fire insurance
– What you can and cannot do
• Depends on State, union/non-union
• Wellness programs; smoking cessation programs
10-32
https://wwwnc.cdc.gov/travel/notices/
LO6:
Discuss the main elements in an
occupational security and risk
management program.
9-33
Occupational Security & Risk
Management (1)
Enterprise risk management
– Identifying security and other corporate risks
– Plans to mitigate risks
– Actions to mitigate risks

10-34
Preventing/Dealing with violence at work
– Adopt a workplace violence policy
– Heighten security measures
– Improve employee screening
– Use workplace violence training
– Violence toward women at work
• Men have more fatal occupations injuries
• Women have higher proportion of assault
10-35
Management (2)
Setting up a basic security program
– Installing mechanical, natural, and organizational security
systems
Terrorism
– Policies (e.g. check mail)
– Authority to close the company?
– Shutdown process
– Crisis management team

10-36
Management (3)
Video: BP Texas City Disaster (55:00)
1-37
https://www.youtube.com/watch?time_continue=88&v=ti9YfdX
qbjs&feature=emb_logo

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