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A Beginners Guide to Hypothesis Testing: Hypothesis Made Simple

What is a hypothesis?

A hypothesis is a primary method in research. It is considered as an assumption for research work to be tested. The main function of a hypothesis is to suggest new observations or experiments. 938 more words

Business Intelligence

Data Scientists vs. Data Engineers and Data Analysts

Data engineers, data analysts, and data scientists are all valuable additions to businesses of all size and scope. But they each have a different job to do. 46 more words

Business Intelligence

6 Brilliant Ways Retailers Can Use Data to Improve Sales, Productivity, and Customer Satisfaction

You’ve probably heard of this many times but I’ll say it again: any business will falter if you don’t use your data effectively and accordingly. It is always a best practice for most retailers or mass-merchandisers to use the data collated from internal real-time reports such as Sales and Purchasing/Inventory reports. 45 more words

Business Intelligence

Adopting a hybrid data management approach

Companies such as Apple, Amazon, Google, Uber and Airbnb have shown how to build scalable data-centric foundations and disrupt traditional markets. Others will have to decide if they can lead as market disruptors or follow the leaders by perfectly executing their digital transformations to defend their market positions and extend their systems to new digital channels. 452 more words


Big Data or Fast Data – Does Big Really Matter?

After years of hype about big data this question remains: Does big data really matter? A recent CIO.com article – Study reveals that most companies are failing at big data – raises further questions. 143 more words

Business Intelligence

Spark Error Failed to Send RPC to Datanode

This past week we had quite few issues with users not being able to run Spark jobs. Particularly a team that was on tight schedule used to get errors like this all the time: 101 more words

Business Intelligence