10 Questions
14 Views

# Inferential Statistics in Research Studies

Created by
@UsefulSatire

## Questions and Answers

### What is the role of inferential statistics in research studies?

• To predict the exact outcomes of samples
• To describe the sample data accurately
• To answer questions about the population using sample data (correct)
• To generate general questions about the population
• ### In the context of selecting marbles from jars, what does probability provide a connection between?

• Exact and approximate outcomes
• Black and white marbles
• Population sizes
• Samples and populations (correct)
• ### If a jar contains 80 black marbles and 20 white marbles, what is the chance of selecting a white marble?

• 100%
• 50%
• 20% (correct)
• 80%
• ### How does knowing the makeup of a population help determine specific samples?

<p>It determines the probability of obtaining particular samples</p> Signup and view all the answers

### What is the primary function of inferential procedures in research studies?

<p>To generalize findings from a sample to a population</p> Signup and view all the answers

### What is the primary goal of inferential statistics?

<p>To begin with a sample and answer a general question about the population</p> Signup and view all the answers

### In the two-stage process of inferential statistics, what is involved in the first stage?

<p>Developing probability as a bridge from samples to populations</p> Signup and view all the answers

### How does the process of inferential statistics involve using probability?

<p>To move from samples to populations by reversing probability rules</p> Signup and view all the answers

### When selecting a sample of n=4 marbles and all are black, which jar is most likely based on the described scenario?

<p>Jar 2 with 90 black and 10 white marbles</p> Signup and view all the answers

### Why is it crucial to establish probability as a bridge from populations to samples in inferential statistics?

<p>To allow for the movement from samples to populations using reversed rules</p> Signup and view all the answers

## Study Notes

### Inferential Statistics

• The goal of inferential statistics is to begin with a sample and then answer a general question about the population.
• The process involves a two-stage approach: developing probability as a bridge from populations to samples, and then reversing the probability rules to move from samples to populations.

### Reversing Probability Relationships

• The process of reversing the probability relationship can be demonstrated by considering a sample of marbles selected from one of two jars with different populations.
• If a sample of 4 marbles is selected and all are black, it is likely that the sample came from jar 2, which has a high proportion of black marbles.

### Using Samples to Make Inferences

• Inferential statistics uses the sample data to make inferences about the population.
• Research studies begin with a general question about an entire population, but the actual research is conducted using a sample.
• Inferential procedures are built around the concept of probability, which defines the relationships between samples and populations.

### Probability and Population

• The probability of obtaining specific samples can be determined by knowing the makeup of a population.
• For example, in a jar with 50 black and 50 white marbles, the probability of selecting a black marble is 50%.
• In a jar with 90 black and 10 white marbles, the probability of selecting a black marble is higher.

## Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

## Description

Explore the role of inferential statistics in research studies, where sample data is used to answer questions about populations. Learn how probability and sample-population relationships are key concepts in inferential procedures.

## More Quizzes Like This

Use Quizgecko on...
Browser
Information:
Success:
Error: