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Marketing Management Analytics
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No, R sq cannot be negative as it represents the proportion of the variance in the dependent variable that is predictable from the independent variable.
R sq (R-squared) ranges from 0 to 1, where 0 indicates that the model does not explain any of the variability of the response data around its mean, and 1 indicates that the model explains all the variability.
A negative R sq value would imply that the model is worse at p...
Regression process involves fitting a mathematical model to data points to predict outcomes.
Identify the relationship between the independent and dependent variables
Choose the appropriate regression model (linear, logistic, etc.)
Collect and preprocess data
Split data into training and testing sets
Fit the regression model to the training data
Evaluate the model using metrics like R-squared, Mean Squared Error, etc.
Use the
R square is a statistical measure that represents the proportion of the variance for a dependent variable that's explained by an independent variable.
R square is also known as the coefficient of determination.
It ranges from 0 to 1, with 1 indicating a perfect fit.
It is used to evaluate the goodness of fit of a regression model.
Higher R square values indicate that the model explains a larger proportion of the variance i...
Model fit can be checked using various statistical measures and techniques.
Check goodness of fit statistics like R-squared, AIC, BIC
Analyze residuals to ensure they are normally distributed and homoscedastic
Use diagnostic plots like QQ plots, residual plots, and leverage plots
Perform cross-validation to assess model performance on unseen data
I applied via Referral and was interviewed before Oct 2023. There were 3 interview rounds.
It involved sql questions mostly.
Project based questions
I am seeking a competitive salary commensurate with my experience and skills, and a collaborative work environment that fosters growth and development.
Seeking a competitive salary based on experience and skills
Looking for a collaborative work environment
Desire a workplace that encourages growth and development
I applied via campus placement at National Institute of Science and Technology, Berhampur and was interviewed before Mar 2023. There was 1 interview round.
React is a popular JavaScript library for building user interfaces.
Component-based architecture for reusability and organization
Virtual DOM for efficient updates and performance
One-way data binding for predictable data flow
Support for server-side rendering for SEO optimization
Large community and ecosystem for support and resources
A diffing algorithm is used to compare two sets of data and identify the differences between them.
Diffing algorithms are commonly used in version control systems to track changes in code.
Some popular algorithms for diffing include Myers' diff algorithm and the Hunt-McIlroy algorithm.
Diffing algorithms can be implemented using dynamic programming or other techniques to efficiently compare large datasets.
Marketing Management Analytics interview questions for popular designations
Top trending discussions
I was interviewed in Jul 2024.
I applied via Approached by Company and was interviewed in Sep 2024. There was 1 interview round.
Agile ceremonies are key meetings in Agile methodology where QA plays a crucial role in ensuring quality throughout the development process.
QA participates in Agile ceremonies such as Sprint Planning, Daily Stand-ups, Sprint Review, and Sprint Retrospective to provide input on quality aspects.
QA helps in defining acceptance criteria for user stories during Sprint Planning to ensure that the team understands the quality...
Story estimation techniques in Agile involve using relative sizing, planning poker, and t-shirt sizing.
Relative sizing compares the size of one story to another to estimate effort.
Planning poker involves team members individually estimating stories and then discussing differences.
T-shirt sizing categorizes stories into small, medium, large, etc. based on complexity.
Fibonacci sequence can be used for story points (1, 2,
Updating the scrum board involves adding, moving, and removing tasks to reflect the current status of the project.
Regularly update the scrum board with the progress of tasks
Move tasks from 'To Do' to 'In Progress' to 'Done' columns as they are worked on and completed
Remove tasks that are no longer relevant or have been completed
Ensure the team is aware of any changes made to the scrum board
SQL Joins are used to combine rows from two or more tables based on a related column between them.
INNER JOIN: Returns rows when there is at least one match in both tables
LEFT JOIN: Returns all rows from the left table and the matched rows from the right table
RIGHT JOIN: Returns all rows from the right table and the matched rows from the left table
FULL JOIN: Returns rows when there is a match in one of the tables
I have experience using a variety of testing tools such as Selenium, Jira, and TestRail.
Selenium
Jira
TestRail
Over 5 years of experience leading QA teams, faced challenges in communication, resource allocation, and stakeholder management.
Managed a team of 10 QA engineers, ensuring timely delivery of high-quality testing.
Challenges included resolving conflicts within the team, prioritizing tasks based on project deadlines, and effectively communicating with stakeholders.
Implemented agile methodologies to improve team efficiency...
posted on 15 Nov 2024
I was interviewed in Oct 2024.
Basic Financial Accounting concepts
Email Writing
Logical Reasoning
Line items in an Income Statement include revenues, expenses, gains, and losses.
Revenue: Sales of goods or services
Cost of Goods Sold (COGS): Direct costs related to producing goods sold
Gross Profit: Revenue minus COGS
Operating Expenses: Costs related to running the business (e.g. salaries, rent)
Operating Income: Gross profit minus operating expenses
Interest Expense: Cost of borrowing money
Net Income: Total profit afte...
Investment banking involves providing financial advisory services to corporations, governments, and other institutions for raising capital, mergers and acquisitions, and other financial transactions.
Helps companies raise capital through issuing stocks or bonds
Assists in mergers and acquisitions by providing valuation and negotiation services
Provides financial advisory services for various transactions such as IPOs, deb...
Share buybacks impact financial statements by reducing outstanding shares, increasing EPS, and affecting cash flow.
Share buybacks reduce the number of outstanding shares on the balance sheet.
This can increase earnings per share (EPS) as the same amount of earnings is distributed among fewer shares.
On the income statement, share buybacks can lead to higher EPS and potentially higher stock prices.
Share buybacks can also ...
Bonus share issue impacts financial statements by increasing equity on balance sheet, reducing retained earnings, and affecting earnings per share.
Increase in equity on balance sheet due to additional shares issued at no cost
Reduction in retained earnings as company's profits are distributed among more shareholders
Impact on earnings per share as number of shares outstanding increases
Sabre Commands to Check Availability
Blocking and Booking Tickets
Commands to Check Fare rules
Checking Availability
Infant and Child title
I applied via Referral and was interviewed in Oct 2024. There were 2 interview rounds.
Assumptions of Linear Regression
Linearity: The relationship between the independent and dependent variables is linear.
Independence: The residuals are independent of each other.
Homoscedasticity: The variance of residuals is constant across all levels of the independent variables.
Normality: The residuals are normally distributed.
No multicollinearity: The independent variables are not highly correlated with each other.
Evaluate machine learning model by analyzing metrics like accuracy, precision, recall, F1 score, ROC curve, and confusion matrix.
Calculate accuracy to measure overall performance of the model.
Use precision to evaluate the proportion of true positive predictions among all positive predictions.
Consider recall to assess the proportion of true positive predictions among all actual positives.
Calculate F1 score as a balance ...
I applied via Naukri.com
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R.R. Donnelley
Iris Software