8 min read
This study guide covers statistical inference for proportions, including confidence intervals and significance tests. It explains how to estimate population proportions from sample data, test claims about population proportions, and perform inference with two proportions. Key concepts include sample proportion, sample size, confidence level, null hypothesis, alternative hypothesis, and p-value. The guide also emphasizes conditions for inference (randomness, independence, and normality) and provides practice questions.
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Question 1 of 11
๐ What is the main goal of statistical inference?
To calculate sample statistics
To make educated guesses about a population using sample data
To describe the characteristics of a sample
To prove population parameters with certainty