Question 1
What does marginal utility measure?
Satisfaction divided by the quantity of the good
Added satisfaction from having one more unit of the good
Satisfaction divided by the price of the good
All of these
None of these
The IIT Madras BS Business Data Management (BDM) End Term paper sat on 11 Dec 2022, in the September 2022 term, set ETD1-2: 26 questions for 40 marks in 180 minutes. Every question is below with its answer. Take it as a timed mock test to be marked, or read it through first.
What does marginal utility measure?
Satisfaction divided by the quantity of the good
Added satisfaction from having one more unit of the good
Satisfaction divided by the price of the good
All of these
None of these
Correct answer
Added satisfaction from having one more unit of the good
An increase in income leads to an increase in demand for:
Inferior good
Normal good
Substitute good
Luxury good
Correct answer
Luxury good
When computing price elasticity, the slope of the demand curve depends on
The units used to measure quantity but not the units used to measure price
The units used to measure price but not the units used to measure quantity
Neither the units used to measure quantity nor the units used to measure price
The units used to measure the quantity and the units used to measure price
Correct answer
Neither the units used to measure quantity nor the units used to measure price
What category of SKUs should be kept closer to the processing area?
Low demand / slow moving items - to avoid clutter or congestion near the processing area
High Demand / Fast Moving items - Saves time and effort. Helps in quicker access
Expensive Items - To increase security, the items are kept at a visible distance, enabling constant surveillance
Inexpensive Items - To avoid significant losses caused by thefts.
Correct answer
High Demand / Fast Moving items - Saves time and effort. Helps in quicker access
Which of the following plan stages will typically have the longest span for low technology and quick set up factory operation?
Strategic Plan
Capacity Requirement Plan
Purchase Plan
Production Plan
Shift Operation Plan
Correct answer
Strategic Plan
Which of the following is not a source of survey data?(select all that is applicable)
Market research data
Stock market data
Rainfall data
Consumer pyramid data
Correct answers
Stock market data
Rainfall data
What brings about the change in the following scatter plots?
Formatting Legend
Increasing Data Points
Reducing the axis range
Eliminating the Outliers
Correct answers
Reducing the axis range
Eliminating the Outliers
What does a high Average Days of Inventory signify?
Warehouse / Firm has inventory that is difficult to sell
It is a high-demand product - with a heavy flow of sales volume
The replenishment of that product from the Mother Distribution Center is not keeping up with the sales observed by the recipient DC.
Too many return orders.
Correct answers
Warehouse / Firm has inventory that is difficult to sell
The replenishment of that product from the Mother Distribution Center is not keeping up with the sales observed by the recipient DC.
If the sales (volume) of the laptops increase in a particular period, which of the following item(s) also increase(s)?Choose all that apply
Profit
Cost of Goods Sold
Closing Inventory
Fixed Cost
Correct answer
Cost of Goods Sold
The graphs below indicate which of the following? Choose all that apply
Production Quantity is similar between two fiscal years (2019-20 and 2020-21)
Difference between the Sales and Production shows an increase in December 2019-20 from the previous month
Production Quantity is likely to be influenced by Sales
No meaningful conclusion can be derived from the graph.
Correct answers
Difference between the Sales and Production shows an increase in December 2019-20 from the previous month
Production Quantity is likely to be influenced by Sales
If the current ratio is 2:1 and the Quick ratio is 1.5:1, then which of the following is/are true? (Select all that are applicable)
Current assets are 2 times the liability
Liability is 2 times the current assets
Stocks is 0.5 times the liability
Liability is 0.5 times Stocks
Current assets are greater than stocks
Stocks are greater than current assets
None of these
Correct answers
Current assets are 2 times the liability
Stocks is 0.5 times the liability
Current assets are greater than stocks
The decrease in price of a product from INR 10 to INR 8 raised the demand by 30%. What is the elasticity of demand for the product?
Correct answer: 1.5
Analyze the following data set and answer the given subquestions:
| S. No | Customer ID | Merchant Segment | Device | Test / Control Group | Old Engagement Segment | New Engagement Segment |
|---|---|---|---|---|---|---|
| 1 | 441280 | Electronics | UPI | T | Low | Medium |
| 2 | 441265 | Travel | PayLater | T | Medium | Low |
| 3 | 441250 | Electronics | Debit Card | T | Medium | Low |
| 4 | 441285 | Travel | Credit Card | T | Medium | Low |
| 5 | 441285 | Grocery | UPI | T | Low | Medium |
| 6 | 441283 | Travel | Debit Card | C | About to churn | High |
| 7 | 441251 | Grocery | UPI | C | Low | High |
| 8 | 441269 | Electronics | Credit Card | C | About to churn | High |
| 9 | 441420 | Fashion | UPI | C | Medium | Low |
| 10 | 441777 | Fashion | UPI | C | Medium | High |
What can we infer from this A/B Testing?
People who buy Groceries avoid the usage of Credit Card
The test group did not respond well to the new features or nudges.
The nudge worked.
It is not possible for a previously Medium level engagement customer to drop down to an 'About to Churn’ Level
Correct answer
The test group did not respond well to the new features or nudges.
Analyze the following data set and answer the given subquestions:
| S. No | Customer ID | Merchant Segment | Device | Test / Control Group | Old Engagement Segment | New Engagement Segment |
|---|---|---|---|---|---|---|
| 1 | 441280 | Electronics | UPI | T | Low | Medium |
| 2 | 441265 | Travel | PayLater | T | Medium | Low |
| 3 | 441250 | Electronics | Debit Card | T | Medium | Low |
| 4 | 441285 | Travel | Credit Card | T | Medium | Low |
| 5 | 441285 | Grocery | UPI | T | Low | Medium |
| 6 | 441283 | Travel | Debit Card | C | About to churn | High |
| 7 | 441251 | Grocery | UPI | C | Low | High |
| 8 | 441269 | Electronics | Credit Card | C | About to churn | High |
| 9 | 441420 | Fashion | UPI | C | Medium | Low |
| 10 | 441777 | Fashion | UPI | C | Medium | High |
In the PayBuddy case - what are the main causes for the company to face losses?
Wrong assessment of Credit Approval
Low commission rate per transaction
Travel Industry hit by COVID
Users unaware/unsure about the concept of credit
Correct answer
Wrong assessment of Credit Approval
Answer the given subquestions on the Overall Equipment Effectiveness of fasteners
manufacturing.
Hint:
Just in case you forgot the formula
Availability = Run Time / Planned Production Time
Run Time = Planned Production Time − Lost Time
Performance = (Total Count / Run Time) / Ideal Run Rate
Quality = Good Count / Total Count
OEE = Availability × Performance × Quality
A nut manufacturing process had scheduled maintenance of two shifts in a particular week. Which components(s) of Overall Equipment Effectiveness (OEE) will certainly be affected in that week? a) availability, b) performance, c) quality
only performance
only availability
performance and quality
All of these
None of these
Correct answer
only availability
Answer the given subquestions on the Overall Equipment Effectiveness of fasteners
manufacturing.
Hint:
Just in case you forgot the formula
Availability = Run Time / Planned Production Time
Run Time = Planned Production Time − Lost Time
Performance = (Total Count / Run Time) / Ideal Run Rate
Quality = Good Count / Total Count
OEE = Availability × Performance × Quality
Calculate the following of the Gear Manufacturing Equipment for a particular week
| Parameters | Week 1 |
|---|---|
| No. of Shifts/ Day (No Holiday on any day of the week) | 3 |
| No. of Hours/Shift | 8 |
| Lost Time in Hours | 24 |
| Designed production speed of gears per Hour | 60 |
| Total Product Output | 6740 |
| Scrap (S) | 122 |
Availability - _______%
Correct answer: 85.5 (accepted within ±0.5)
Answer the given subquestions on the Overall Equipment Effectiveness of fasteners
manufacturing.
Hint:
Just in case you forgot the formula
Availability = Run Time / Planned Production Time
Run Time = Planned Production Time − Lost Time
Performance = (Total Count / Run Time) / Ideal Run Rate
Quality = Good Count / Total Count
OEE = Availability × Performance × Quality
Calculate the following of the Gear Manufacturing Equipment for a particular week
| Parameters | Week 1 |
|---|---|
| No. of Shifts/ Day (No Holiday on any day of the week) | 3 |
| No. of Hours/Shift | 8 |
| Lost Time in Hours | 24 |
| Designed production speed of gears per Hour | 60 |
| Total Product Output | 6740 |
| Scrap (S) | 122 |
Performance ________%
Correct answer: 78 (accepted within ±0.5)
Answer the given subquestions on the Overall Equipment Effectiveness of fasteners
manufacturing.
Hint:
Just in case you forgot the formula
Availability = Run Time / Planned Production Time
Run Time = Planned Production Time − Lost Time
Performance = (Total Count / Run Time) / Ideal Run Rate
Quality = Good Count / Total Count
OEE = Availability × Performance × Quality
Calculate the following of the Gear Manufacturing Equipment for a particular week
| Parameters | Week 1 |
|---|---|
| No. of Shifts/ Day (No Holiday on any day of the week) | 3 |
| No. of Hours/Shift | 8 |
| Lost Time in Hours | 24 |
| Designed production speed of gears per Hour | 60 |
| Total Product Output | 6740 |
| Scrap (S) | 122 |
Quality ________%
Correct answer: 98 (accepted within ±0.5)
Answer the given subquestions on the Overall Equipment Effectiveness of fasteners
manufacturing.
Hint:
Just in case you forgot the formula
Availability = Run Time / Planned Production Time
Run Time = Planned Production Time − Lost Time
Performance = (Total Count / Run Time) / Ideal Run Rate
Quality = Good Count / Total Count
OEE = Availability × Performance × Quality
Calculate the following of the Gear Manufacturing Equipment for a particular week
| Parameters | Week 1 |
|---|---|
| No. of Shifts/ Day (No Holiday on any day of the week) | 3 |
| No. of Hours/Shift | 8 |
| Lost Time in Hours | 24 |
| Designed production speed of gears per Hour | 60 |
| Total Product Output | 6740 |
| Scrap (S) | 122 |
OEE ________ (Enter a number from 0 to 1 up to 3 decimal places)
Correct answer: 0.655 (accepted within ±0.015)
Answer the given subquestions on the Overall Equipment Effectiveness of fasteners
manufacturing.
Hint:
Just in case you forgot the formula
Availability = Run Time / Planned Production Time
Run Time = Planned Production Time − Lost Time
Performance = (Total Count / Run Time) / Ideal Run Rate
Quality = Good Count / Total Count
OEE = Availability × Performance × Quality
An 8-hour shift of clamp manufacturing process (with no downtime) has an OEE of 0.90 performing at its designed speed and produces a total scrap of 45 units. What is the total number of units produced in the shift?
Correct answer: 450
Match the following
| A. Pareto Principle | 1. A metric to calculate the rate at which customers stop doing business with a company over a given period of time. |
|---|---|
| B. A/B Testing | 2. Helps companies to make careful changes to their user experiences while collecting data on the results. |
| C. Churn Rate | 3. A software/website that facilitates the smooth transfer of funds between customers and online businesses |
| D. Nudge Theory | 4. Most things in business (revenue, sales volume, etc) are not distributed evenly – some contribute more than others. |
| 5. A way of offering small clues that support decision-making |
A - 4,B - 2,C - 1,D - 5
A - 4,B - 2,C - 3,D - 5
A - 5,B - 2,C - 1,D - 3
A - 5,B - 1,C - 2,D - 3
Correct answer
A - 4,B - 2,C - 1,D - 5
Which of the following are the functions of a Payment Merchant like G-Pay or Paytm?
Targets users with low bank balances and provides them with surplus money
Acts as the mediator between the merchant and the financial institutions involved
Acts as a distributor for products and services
Provides multiple payment options
Correct answers
Acts as the mediator between the merchant and the financial institutions involved
Provides multiple payment options
Increase in which of the following will increase the Net Margin? Choose all that apply
Revenue
Direct Material Cost
Direct Labour Cost
Shipping Cost
Insufficient Information
Correct answer
Insufficient Information
Consider the dataset.
| Candidates | F1: Year of experience | F2: Count Skill | F3: Count_key_projects | F4: When will be available to join (months) |
|---|---|---|---|---|
| Partha | 5.0 | 2 | 2 | 2 |
| Siva | 5.0 | 1 | 1 | 2 |
| Akanksha | 5.5 | 1 | 2 | 2 |
| Lavanya | 6.0 | 1 | 1 | 3 |
Here the factors F1 ..F3 are “higher the better”, but, F4 is “lower the better”. Rank the above candidates and choose the correct ranking from the below options.
Partha > Akanksha > Siva > Lavanya
Akanksha > Lavanya > Siva> Partha
Partha < Akanksha < Lavanya < Siva
Akanksha < Lavanya < Siva< Partha
Correct answer
Partha > Akanksha > Siva > Lavanya
From the table, which of the options best represents the revenue change from 31st March 2022 to 1st April 2022?
| Date | Sum of Revenue |
|---|---|
| 23-03-2022 | ₹ 28,92,404 |
| 24-03-2022 | ₹ 27,48,802 |
| 25-03-2022 | ₹ 27,83,849 |
| 26-03-2022 | ₹ 31,52,277 |
| 27-03-2022 | ₹ 31,97,606 |
| 28-03-2022 | ₹ 30,83,087 |
| 29-03-2022 | ₹ 29,96,175 |
| 30-03-2022 | ₹ 27,70,834 |
| 31-03-2022 | ₹ 28,45,271 |
| 01-04-2022 | ₹ 26,48,451 |
| 02-04-2022 | ₹ 30,03,639 |
| 03-04-2022 | ₹ 29,84,822 |
| 04-04-2022 | ₹ 28,52,689 |
| 05-04-2022 | ₹ 27,84,763 |
| 06-04-2022 | ₹ 28,29,945 |
10 Percent - Reduction
7 Percent - Increment
7 Percent - Reduction
10 Percent - Increment
Correct answer
7 Percent - Reduction
Arrange the following steps while working with unstructured data in a ranking modeling: I. Normalizing
II. Preprocessing
III. Ranking
IV. Composite score
I -> II -> III -> IV
II -> I -> IV -> III
I -> II -> IV -> III
II -> I -> III -> IV
Correct answer
II -> I -> IV -> III