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Let’s say we have a table with an <code>id</code> and <code>name</code> fields. The table holds over 100 million rows and we want to sample a random row in the table without throttling the database.

Write a query to randomly sample a row from this table.

Input:

<code>big_table</code> table

<table>
<thead>
<tr>
<th>Columns</th>
<th>Type</th>
</tr>
</thead>

<tbody>
<tr>
<td><code>id</code></td>
<td>INTEGER</td>
</tr>

<tr>
<td><code>name</code></td>
<td>VARCHAR</td>
</tr>
</tbody>
</table>

Write a query to randomly sample a row from a big table.

Random SQL Sample

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 that your company is running a standard control and variant AB test on a feature to increase conversion rates on the landing page. The PM checks the results and finds a .04 p-value.

How would you assess the validity of the result?

Experiment Validity

Cspring Salaries by Position

Title: Senior Data Engineer Related Titles: Azure Data Engineer, Visualization Engineer Location: Indianapolis, IN Office Environment: Hybrid Start Date: Immediate Summary Come join the CSpring family and be a part of our exciting growth story! We're on the lookout for fantastic data professionals at every career stage to join our dynamic team. Together, we're all about unlocking potential - whether it's for our clients, colleagues, or the communities we serve. We achieve this through the delivery of cutting-edge, data-driven solutions, advanced technology platforms, and unparalleled expertise. Our approach centers around being more than just a service provider; we aspire to be genuine partners in success by working as a true extension of our clients and following proven yet adaptable processes while embodying our core values each day. These values are the foundation of both our client and employee experiences, and the biggest reason that CSpring has been recognized as a Best Place to Work year over year. Responsibilities <ul> <li>Develop ETL pipelines from various data repositories to load into various stages of the data platform using a variety of tools and platforms including Microsoft Power Platform </li><li>Collaborate with a team to design and implement data visualizations that effectively communicate insights and support decision-making </li> <li>Develop administration processes to monitor pipeline performance, resource usage, and failure </li><li>Develop data lake and warehouse architectures that support business objectives </li></ul>Requirements<ul><li>4+ years of experience designing and building data pipelines including working through edge cases related to mitigating data source limitations </li> <li>4+ years of cloud experience ideally in Azure, including Azure Data Factory, Azure Blob Storage, and other Azure services or significant experience in other cloud platforms </li><li>Hands-on experience with Power Platform including Power BI, Power Apps and Power Automate </li><li>Programming experience in one or more languages such as Python or R and support libraries such as Pyspark, NumPy, and Pandas </li><li>Strong proficiency in DAX, Power Query, and data modeling techniques </li> <li>Extensive experience with SQL and other database technologies (e.g., SQL Server, Oracle) </li><li>Willingness to work in a hybrid work environment; work in our Indianapolis office or at the client location three days per week </li><li>Must be legally authorized to work in the United States </li><li>Must not require visa sponsorship </li></ul>Preferred Qualifications <ul> <li>Bachelor's degree or equivalent professional experience </li> <li>Client-facing consulting experience </li><li>Experience as a team member on agile teams </li><li>Experience with DevOps practices such as CI/CD and advanced source control practices </li> <li>Certifications related to Azure, Power Platform, AWS or Power BI </li><li>Experience developing Snowflake based solutions </li></ul> About CSpring CSpring is a growing business and IT consulting firm in Indianapolis that's all about serving people well and delivering data-driven solutions. We aspire to be genuine partners in success by working as a true extension of our clients and following proven yet adaptable processes while embodying our core values each day. These values are the foundation of both our client and employee experiences, and the biggest reason that CSpring has been recognized as a Best Place to Work year over year. If you're committed, collaborative, consultative, and caring, you'll feel right at home with us. Joining CSpring means joining our family - our Ohana. As part of our Ohana, expect clear communication, growth opportunities, and celebrations of success. You'll be informed, recognized, rewarded, and respected. Being part of CSpring's Ohana also means building strong relationships. As part of our team, you will join us for quarterly updates, team building and community service events, learning lunches, and more. We offer a comprehensive compensation and benefits package, including Paid Time Off, Medical/Dental/Vision/Life/Disability insurance from day one, and a 401(k) with company matching. Ready to be part of a positive, energetic, and supportive team? Apply now!

Title: Business Analyst Related Titles: Systems Analyst, Business Intelligence Analyst, Product Owner Location: Indianapolis, IN Office Environment: Hybrid Start Date: Immediate Summary Come join the CSpring family and be a part of our exciting growth story! We're on the lookout for fantastic leaders at every career stage to join our dynamic team. Together, we're all about unlocking potential - whether it's for our clients, colleagues, or the communities we serve. We achieve this through the delivery of cutting-edge, data-driven solutions, advanced technology platforms, and unparalleled expertise. Our approach centers around being more than just a service provider; we aspire to be genuine partners in success by working as a true extension of our clients and following proven yet adaptable processes while embodying our core values each day. These values are the foundation of both our client and employee experiences, and the biggest reason that CSpring has been recognized as a Best Place to Work year over year. Responsibilities <ul><li>Conduct thorough analysis of business processes, systems, and data to identify opportunities for improvement and efficiency enhancement</li><li>Collaborate with cross-functional teams to gather and document business requirements, ensuring alignment with organizational goals and objectives</li><li>Create detailed and effective project documentation, which may include user stories, use cases, flowcharts, requirements specifications</li><li>Maintain project documentation throughout project lifecycle, continually keeping the backlog updated and accurate</li><li>Monitor and evaluate the performance of implemented solutions, identifying areas for further optimization and continuous improvement</li></ul> Requirements <ul><li>Ability to create compelling business cases as a by-product of highly effective interview sessions</li><li>Understanding of business complexity and project interdependencies </li><li>Outstanding written and communication skills</li><li>Ability to quickly troubleshoot problems that may arise in work products </li><li>Collaborating with data engineers and AI experts to identify course of resolution</li><li>Willingness to work in a hybrid work environment; work in our Indianapolis office or at the client location three days per week</li><li>Must be legally authorized to work in the United States</li><li>Must not require visa sponsorship</li></ul> Preferred Qualifications <ul><li>5+ years in business analysis, product ownership, or related position</li><li>3+ years in defining functional and technical requirements for web/mobile/e-commerce applications </li><li>Proven experience as a Business Analyst for consulting projects exceeding $500,000 and more than 6 months in duration</li><li>Bachelor's degree in management information systems or another relevant program </li><li>Client-facing consulting experience</li><li>Experience with Agile/Scrum Methodologies and tools (e.g. JIRA) is desirable </li><li>Relevant certifications such as CBAP (Certified Business Analysis Professional) or PMI-PBA (Professional in Business Analysis) are a plus</li></ul> Summary CSpring is a growing business and IT consulting firm in Indianapolis that's all about serving people well and delivering data-driven solutions. We aspire to be genuine partners in success by working as a true extension of our clients and following proven yet adaptable processes while embodying our core values each day. These values are the foundation of both our client and employee experiences, and the biggest reason that CSpring has been recognized as a Best Place to Work year over year. If you're committed, collaborative, consultative, and caring, you'll feel right at home with us. Joining CSpring means joining our family - our Ohana. As part of our Ohana, expect clear communication, growth opportunities, and celebrations of success. You'll be informed, recognized, rewarded, and respected. Being part of CSpring's Ohana also means building strong relationships. As part of our team, you will join us for quarterly updates, team building and community service events, learning lunches, and more. We offer a comprehensive compensation and benefits package, including Paid Time Off, Medical/Dental/Vision/Life/Disability insurance from day one, and a 401(k) with company matching. Ready to be part of a positive, energetic, and supportive team? Apply now!

Title: Senior Data Engineer Related Titles: Azure Data Engineer, Visualization Engineer Location: Indianapolis, IN Office Environment: Hybrid Start Date: Immediate Summary Come join the CSpring family and be a part of our exciting growth story! We're on the lookout for fantastic data professionals at every career stage to join our dynamic team. Together, we're all about unlocking potential - whether it's for our clients, colleagues, or the communities we serve. We achieve this through the delivery of cutting-edge, data-driven solutions, advanced technology platforms, and unparalleled expertise. Our approach centers around being more than just a service provider; we aspire to be genuine partners in success by working as a true extension of our clients and following proven yet adaptable processes while embodying our core values each day. These values are the foundation of both our client and employee experiences, and the biggest reason that CSpring has been recognized as a Best Place to Work year over year. Responsibilities <ul><li>Develop ETL pipelines from various data repositories to load into various stages of the data platform using a variety of tools and platforms including Microsoft Power Platform</li><li>Collaborate with a team to design and implement data visualizations that effectively communicate insights and support decision-making </li><li>Develop administration processes to monitor pipeline performance, resource usage, and failure</li><li>Develop data lake and warehouse architectures that support business objectives</li></ul> Requirements <ul><li>4+ years of experience designing and building data pipelines including working through edge cases related to mitigating data source limitations </li><li>4+ years of cloud experience ideally in Azure, including Azure Data Factory, Azure Blob Storage, and other Azure services or significant experience in other cloud platforms</li><li>Hands-on experience with Power Platform including Power BI, Power Apps and Power Automate</li><li>Programming experience in one or more languages such as Python or R and support libraries such as Pyspark, NumPy, and Pandas</li><li>Strong proficiency in DAX, Power Query, and data modeling techniques </li><li>Extensive experience with SQL and other database technologies (e.g., SQL Server, Oracle)</li><li>Willingness to work in a hybrid work environment; work in our Indianapolis office or at the client location three days per week</li><li>Must be legally authorized to work in the United States</li><li>Must not require visa sponsorship</li></ul> Preferred Qualifications <ul><li>Bachelor's degree or equivalent professional experience </li><li>Client-facing consulting experience</li><li>Experience as a team member on agile teams</li><li>Experience with DevOps practices such as CI/CD and advanced source control practices </li><li>Certifications related to Azure, Power Platform, AWS or Power BI</li><li>Experience developing Snowflake based solutions</li></ul> About CSpring CSpring is a growing business and IT consulting firm in Indianapolis that's all about serving people well and delivering data-driven solutions. We aspire to be genuine partners in success by working as a true extension of our clients and following proven yet adaptable processes while embodying our core values each day. These values are the foundation of both our client and employee experiences, and the biggest reason that CSpring has been recognized as a Best Place to Work year over year. If you're committed, collaborative, consultative, and caring, you'll feel right at home with us. Joining CSpring means joining our family - our Ohana. As part of our Ohana, expect clear communication, growth opportunities, and celebrations of success. You'll be informed, recognized, rewarded, and respected. Being part of CSpring's Ohana also means building strong relationships. As part of our team, you will join us for quarterly updates, team building and community service events, learning lunches, and more. We offer a comprehensive compensation and benefits package, including Paid Time Off, Medical/Dental/Vision/Life/Disability insurance from day one, and a 401(k) with company matching. Ready to be part of a positive, energetic, and supportive team? Apply now!

<h3>Job Description</h3><div>Job Description<div>Description: Title: Business AnalystRelated Titles: Systems Analyst, Business Intelligence Analyst, Product OwnerLocation: Indianapolis, IN Office Environment: Hybrid Start Date: Immediate Summary Come join the CSpring family and be a part of our exciting growth story! We're on the lookout for fantastic leaders at every career stage to join our dynamic team. Together, we're all about unlocking potential – whether it's for our clients, colleagues, or the communities we serve. We achieve this through the delivery of cutting-edge, data-driven solutions, advanced technology platforms, and unparalleled expertise. Our approach centers around being more than just a service provider; we aspire to be genuine partners in success by working as a true extension of our clients and following proven yet adaptable processes while embodying our core values each day. These values are the foundation of both our client and employee experiences, and the biggest reason that CSpring has been recognized as a Best Place to Work year over year. Responsibilities <ul><li>Conduct thorough analysis of business processes, systems, and data to identify opportunities for improvement and efficiency enhancement</li><li>Collaborate with cross-functional teams to gather and document business requirements, ensuring alignment with organizational goals and objectives</li><li>Create detailed and effective project documentation, which may include user stories, use cases, flowcharts, requirements specifications</li><li>Maintain project documentation throughout project lifecycle, continually keeping the backlog updated and accurate</li><li>Monitor and evaluate the performance of implemented solutions, identifying areas for further optimization and continuous improvement</li></ul> Requirements:<ul><li>Ability to create compelling business cases as a by-product of highly effective interview sessions</li><li>Understanding of business complexity and project interdependencies </li><li>Outstanding written and communication skills</li><li>Ability to quickly troubleshoot problems that may arise in work products </li><li>Collaborating with data engineers and AI experts to identify course of resolution</li><li>Willingness to work in a hybrid work environment; work in our Indianapolis office or at the client location three days per week</li><li>Must be legally authorized to work in the United States</li><li>Must not require visa sponsorship</li></ul>Preferred Qualifications <ul><li>5+ years in business analysis, product ownership, or related position</li><li>3+ years in defining functional and technical requirements for web/mobile/e-commerce applications </li><li>Proven experience as a Business Analyst for consulting projects exceeding $500,000 and more than 6 months in duration</li><li>Bachelor’s degree in management information systems or another relevant program </li><li>Client-facing consulting experience</li><li>Experience with Agile/Scrum Methodologies and tools (e.g. JIRA) is desirable </li><li>Relevant certifications such as CBAP (Certified Business Analysis Professional) or PMI-PBA (Professional in Business Analysis) are a plus</li></ul>Summary CSpring is a growing business and IT consulting firm in Indianapolis that's all about serving people well and delivering data-driven solutions. We aspire to be genuine partners in success by working as a true extension of our clients and following proven yet adaptable processes while embodying our core values each day. These values are the foundation of both our client and employee experiences, and the biggest reason that CSpring has been recognized as a Best Place to Work year over year. If you're committed, collaborative, consultative, and caring, you'll feel right at home with us. Joining CSpring means joining our family – our Ohana. As part of our Ohana, expect clear communication, growth opportunities, and celebrations of success. You'll be informed, recognized, rewarded, and respected. Being part of CSpring’s Ohana also means building strong relationships. As part of our team, you will join us for quarterly updates, team building and community service events, learning lunches, and more. We offer a comprehensive compensation and benefits package, including Paid Time Off, Medical/Dental/Vision/Life/Disability insurance from day one, and a 401(k) with company matching. Ready to be part of a positive, energetic, and supportive team? Apply now!</div></div>

Title: Business AnalystRelated Titles: Systems Analyst, Business Intelligence Analyst, Product OwnerLocation: Indianapolis, IN Office Environment: Hybrid Start Date: Immediate Summary Come join the CSpring family and be a part of our exciting growth story! We're on the lookout for fantastic leaders at every career stage to join our dynamic team. Together, we're all about unlocking potential - whether it's for our clients, colleagues, or the communities we serve. We achieve this through the delivery of cutting-edge, data-driven solutions, advanced technology platforms, and unparalleled expertise.Our approach centers around being more than just a service provider; we aspire to be genuine partners in success by working as a true extension of our clients and following proven yet adaptable processes while embodying our core values each day. These values are the foundation of both our client and employee experiences, and the biggest reason that CSpring has been recognized as a Best Place to Work year over year.Responsibilities Conduct thorough analysis of business processes, systems, and data to identify opportunities for improvement and efficiency enhancementCollaborate with cross-functional teams to gather and document business requirements, ensuring alignment with organizational goals and objectivesCreate detailed and effective project documentation, which may include user stories, use cases, flowcharts, requirements specificationsMaintain project documentation throughout project lifecycle, continually keeping the backlog updated and accurateMonitor and evaluate the performance of implemented solutions, identifying areas for further optimization and continuous improvementRequirements Ability to create compelling business cases as a by-product of highly effective interview sessionsUnderstanding of business complexity and project interdependencies Outstanding written and communication skillsAbility to quickly troubleshoot problems that may arise in work products Collaborating with data engineers and AI experts to identify course of resolutionWillingness to work in a hybrid work environment; work in our Indianapolis office or at the client location three days per weekMust be legally authorized to work in the United StatesMust not require visa sponsorshipPreferred Qualifications 5+ years in business analysis, product ownership, or related position3+ years in defining functional and technical requirements for web/mobile/e-commerce applications Proven experience as a Business Analyst for consulting projects exceeding $500,000 and more than 6 months in durationBachelor's degree in management information systems or another relevant program Client-facing consulting experienceExperience with Agile/Scrum Methodologies and tools (e.g. JIRA) is desirable Relevant certifications such as CBAP (Certified Business Analysis Professional) or PMI-PBA (Professional in Business Analysis) are a plusSummary CSpring is a growing business and IT consulting firm in Indianapolis that's all about serving people well and delivering data-driven solutions. We aspire to be genuine partners in success by working as a true extension of our clients and following proven yet adaptable processes while embodying our core values each day. These values are the foundation of both our client and employee experiences, and the biggest reason that CSpring has been recognized as a Best Place to Work year over year. If you're committed, collaborative, consultative, and caring, you'll feel right at home with us.Joining CSpring means joining our family - our Ohana. As part of our Ohana, expect clear communication, growth opportunities, and celebrations of success. You'll be informed, recognized, rewarded, and respected. Being part of CSpring's Ohana also means building strong relationships. As part of our team, you will join us for quarterly updates, team building and community service events, learning lunches, and more. We offer a comprehensive compensation and benefits package, including Paid Time Off, Medical/Dental/Vision/Life/Disability insurance from day one, and a 401(k) with company matching.Ready to be part of a positive, energetic, and supportive team? Apply now!

Cspring Interview Questions

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Cspring Interview Questions

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