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Suppose there exists a new airline named Jetco that flies domestically across North America. Jetco recently had a study commissioned that tested the boarding time of every airline, and it came out that Jetco had the fastest average boarding times of any airline.

What factors could have biased this result, and what would you look into?

What could potentially bias the average boarding time in favor of an airline that only flies domestically?

What could potentially bias the average boarding time in favor of an airline that only flies domestically?

Boarding Times Bias

A new airline came out as the fastest average boarding times compared to other airlines.  What factors could have biased this result and what would you look into?

Statistics

You are testing hundreds of hypotheses with many t-tests. What considerations should be made?

What is a key disadvantage of the F-test when compared to multiple t-tests?

What is a key disadvantage of the F-test when compared to multiple t-tests?

Hundreds of Hypotheses

You are testing hundreds of hypotheses with many t-tests. What considerations should be made?

Let’s say you work for a social media company that has just done a launch in a new city. Looking at weekly metrics, you see a slow decrease in the average number of comments per user from January to March in this city.

The company has been consistently growing new users in the city from January to March.

What are some reasons why the average number of comments per user would be decreasing and what metrics would you look into?

What metric could be used to measure if active users are still engaging on the platform despite an overall decrease in the average number of comments per user?

What metric could be used to measure if active users are still engaging on the platform despite an overall decrease in the average number of comments per user?

Decreasing Comments

How would you investigate a decline in the average number of comments per user?

Product Metrics

Boston College Salaries by Position

<div><h2>Job Title</h2>Boston College offers a broad and competitive range of benefits depending on your job classification eligibility:<ul><li>Tuition remission for Employees</li><li>Tuition remission for Spouses and Children who meet eligibility requirements</li><li>Generous Medical, Dental, and Vision Insurance</li><li>Low-Cost Life Insurance</li><li>Eligibility for both University-Funded 401k and Employer-Sponsored 403b Retirement Plans</li><li>Paid Holidays Annually</li><li>Generous Sick and Vacation Pay</li><li>Additional benefits can be found on https://www.bc.edu/employeehandbook</li></ul>Boston College conducts pre-employment background checks as part of the hiring process.Boston College is an Equal Opportunity Employer and does not discriminate on the basis of any legally protected category, including disability and protected veteran status. Boston College's Notice of Nondiscrimination can be viewed at https://www.bc.edu/nondiscrimination.</div>

Question	Topic	Difficulty	Ask Chance
Boarding Times Bias	Statistics	Medium	Very High
Hundreds of Hypotheses	Statistics	Medium	Very High
Decreasing Comments	Product Metrics	Easy	Very High

Boston College Interview Questions

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Boston College Interview Questions

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