CIPS L4M2 Exam Actual Questions

Regression refers to a quantitative measure of the relationship between one or more independent variables and a resulting dependent variable. Regression is of use to professionals in a wide range of fields from science and public service to financial analysis.

To perform a regression analysis, a statistician collects a set of data points, each including a com-plete set of dependent and independent variables. For example, the dependent variable could be a firm's stock price and the independent variables could be the Standard and Poor's 500 index and the national unemployment rate, assuming that the stock is not listed in the S&P 500. The sample set could be each of these three data sets for the past 20 years.

On a chart, these data points would appear as scatter plot, a set of points that may or may not appear to be organized along any line. If a linear pattern is apparent, it may be possible to sketch a line of best fit that minimizes the distance of those points from that line. If no organizing axis is visually apparent, regression analysis can generate a line based on the least squares method. This method builds the line which minimizes the squared distance of each point from the line of best fit.

Line of best fit is one of the most important outputs of regression analysis.

- CIPS study guide page 99-100

- Line Of Best Fit (investopedia.com)

LO 2, AC 2.3

The buyer won't pay the supplier until next month. This is a liability to the buyer. This amount can be recorded as accrued expense or accounts payable. On the other hand, the supplier has not sent the invoice, so it should be accrued expense.

Both accounts payables and accrued expenses are liabilities. Accounts payable is the total amount of short-term obligations or debt a company has to pay to its creditors for goods or services bought on credit. With accounts payables, the vendor's or supplier's invoices have been received and recorded.

On the other hand, accrued expenses are the total liability that is payable for goods and services that have been consumed by the company or received. However, accrued expenses are those bills in which an invoice or bill has not yet been received. As a result, accrued expenses can sometimes be an estimated amount of what's owed, which is adjusted later to the exact amount, once the invoice has been received.

Conversely, accounts payable should represent the exact amount of the total owed from all of the invoices received.

- CIPS study guide page 55-56

- Understanding Accrued Expenses vs. Accounts Payable (investopedia.com)

LO 1, AC 1.4

In the scenario, ABC Ltd has the following characteristics:

- Large investment in facilities and machinery

- Access to skilled workforce

- Mass production.

This company is a manufacturer. Manufacturing is an industry that makes products from raw ma-terials by the use of manual labour or machinery and that is usually carried out systematically with a division of labour.

Manufacturing requires investment in machinery and access to a suitably skilled workforce as well as materials and components.

- CIPS study guide page 74-76

- manufacturing | Definition, Types, & Facts | Britannica

LO 2, AC 2.1

Cracks on the jet engine is a closed-end problem. A typical problem solving process has 8 steps:

Step 1: Define the Problem

- What is the problem?

- How did you discover the problem?

- When did the problem start and how long has this problem been going on?

- Is there enough data available to contain the problem and prevent it from getting passed to the next process step? If yes, contain the problem.

Step 2: Clarify the Problem

- What data is available or needed to help clarify, or fully understand the problem?

- Is it a top priority to resolve the problem at this point in time?

- Are additional resources required to clarify the problem? If yes, elevate the problem to your leader to help locate the right resources and form a team.

- Consider a Lean Event (Do-it, Burst, RPI, Project).

- Ensure the problem is contained and does not get passed to the next process step.

Step 3: Define the Goals

- What is your end goal or desired future state?

- What will you accomplish if you fix this problem?

- What is the desired timeline for solving this problem?

Step 4: Identify Root Cause of the Problem

- Identify possible causes of the problem.

- Prioritize possible root causes of the problem.

- What information or data is there to validate the root cause?

Step 5: Develop Action Plan

- Generate a list of actions required to address the root cause and prevent problem from getting to others.

- Assign an owner and timeline to each action.

- Status actions to ensure completion.

Step 6: Execute Action Plan

- Implement action plan to address the root cause.

- Verify actions are completed.

Step 7: Evaluate the Results

- Monitor and Collect Data.

- Did you meet your goals defined in step 3? If not, repeate th 8-Step Process.

- Were there any unforeseen consequences?

- If problem is resolved, remove activities that were added previously to contain the problem.

Step 8: Continuously Improve

- Look for additional opportunities to implement solution.

- Ensure problem will not come back and communicate lessons learned.

- If needed, repeat the 8-Step Problem Solving Process to drive further improvements.

ANA has already known what is going on, the next step they should adopt is collecting more infor-mation on the problem. If the airline is hurry to the solution, it may choose 'Generate options ad-dressing the issue'. The crack on turbine blade can be welded, or the airline replaces a new blade. However, jumping to solution without knowing the root cause does not completely solve the prob-lem. The root cause is unaddressed, then it may occur in the future. Therefore, the airline should still collect information to find the root cause, then remove it.

LO 1, AC 1.1

Those items make up small portion of spend and the supply risk is low. So it is tactical item according to Kraljic portfolio matrix. Procurement should bundle these items into larger contracts, simplify procurement process.

LO 2, AC 2.1