What kind of metrics do you want to monitor when you are taking charge of evaluating the business performance of an outbound warehouse?

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What are ways to eliminate bottlenecks?

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How would you identify and address potentially under-performing predictive models in a production environment?

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What is the maximum number of IF statements you can nest within a single formula in Excel? Provide an example of a nested IF statement.

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When is it appropriate to use **mean** versus **median** in data analysis? Provide specific examples where one measure may be preferred over the other.

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You mentioned your proficiency with SQL and data forecasting. Can you describe a past experience where you used SQL to analyze data and generate a forecast? What challenges did you face, and how did you address them?

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Using the dataset above, write an Excel formula to calculate the total sales made by each salesperson. Provide the calculated total sales for "John."

**Input Data:**

```
Consider a dataset in Excel with the following columns: `Salesperson`, `Product`, `Quantity`, and `Price`.
**Data**
| A | B | C | D |
|------------|--------|----------|--------|
| Salesperson| Product| Quantity | Price |
| John | Widget | 10 | 15 |
| Jane | Gadget | 5 | 20 |
| John | Gizmo | 7 | 30 |
| Alice | Widget | 3 | 15 |
| Jane | Gadget | 10 | 20 |
```

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How many websites are on the internet? How would you find out the number?

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What is a `xyz`

in Tableau and what does it do?

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What is the difference between Extract and Live in Tableau?

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What is the difference between 'WHERE' and 'HAVING' filters in SQL? Provide an example to illustrate your point.

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