00:01
This question says, imagine that you interview for a data analyst role at a local ice cream company.
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The company needs a data analyst because they want to learn more about their customers.
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First, they want to understand their customers ' ice cream flavor preferences.
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Then they will use this customer data to help make important decisions.
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The hiring manager explains they do not collect any customer data and they don't know where to begin.
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You need to explain how you would approach this task.
00:40
So first of all, let's talk about what the data lifecycle is.
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So the data life cycle describes the sequence of stages that a unit of data goes through, starting from initial generation to its eventual archival or deletion.
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So it's basically the cycle that data goes through.
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So first of all, we need to have a plan.
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So what plans and decisions do we need to make? so we need to figure out how we're going to collect data to answer the question.
01:49
So our question was, what ice cream flavor preferences do our customers have? so the kind of data that we need would be things like survey data that would describe customer preferences, the number of each flavor of ice cream sold within a certain time period, so we know which one is more popular, and also data on revenue from each flavor.
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So as part of our plan, we need to decide how we will collect data.
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So as mentioned, we could use a survey.
03:23
We could also record the data as sales are made, or we can use any other form of data collection.
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Then next, we have capture.
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Where does the data come from? so the data is going to come from customer input and decisions.
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And we will get it using survey.
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And recording done by the seller.
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So we might, for example, keep a tally of each flavor that's sold per month.
04:21
Then next, the step is manage...