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# Sampling and Statistical Inference Quiz

Created by
@GentleCarnelian4422

### What is the main difference between descriptive analytics and inferential analytics?

• Descriptive analytics deals with unknown data, while inferential analytics deals with known data based on a sample
• Descriptive analytics uses a sample to make inferences, while inferential analytics uses the entire dataset for analysis
• Descriptive analytics focuses on future predictions, while inferential analytics focuses on past observations
• Descriptive analytics deals with known data, while inferential analytics deals with unknown data based on a sample (correct)
• ### What is the role of the frame in sampling?

• The frame is irrelevant when considering the population for sampling
• The frame is the list of the population and is critical for drawing a sample (correct)
• The frame is used to define the population and is not essential for sampling
• The frame is only used in inferential analytics and not in descriptive analytics
• ### What does the term 'population' refer to in sampling?

• The entire dataset used for descriptive analytics
• The subset of data used for making inferences
• The underlying dataset from which information is gathered (correct)
• The dataset used for future predictions
• ### In inferential analytics, what does the term 'frame' represent?

<p>The list of the population that makes up the entire data set of interest</p> Signup and view all the answers

### 1

<p>population:the underlying data set that we want to gather information on</p> Signup and view all the answers

### What is the term used to describe the statistical error that occurs when a representative random sample is smaller than the population?

<p>Sampling error</p> Signup and view all the answers

### How does sampling error change in relation to sample size?

<p>It decreases as the sample size increases</p> Signup and view all the answers

### What term is used to describe how close a sample mean is to the population mean?

<p>Accuracy</p> Signup and view all the answers

### What does survivorship bias entail?

<p>Focusing on and sampling only what is visible, while ignoring failures that are no longer apparent</p> Signup and view all the answers

### How does survivorship bias affect research in the technology industry over the past decade?

<p>It may lead to biased conclusions by focusing on existing successful companies and neglecting those that have failed</p> Signup and view all the answers

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