8 min read
This study guide covers confidence intervals for proportions, including what they are, how to calculate them, and when to use them. Key topics include checking conditions (randomness, independence, normality), the one-sample z-interval, calculating the margin of error and point estimate, and understanding confidence levels. It also covers using a calculator for these calculations and provides practice questions.
Give us your feedback and let us know how we can improve
Question 1 of 12
What is the main purpose of constructing a confidence interval for a population proportion? 🤔
To calculate the exact population proportion
To estimate a range of plausible values for the population proportion
To determine the sample size needed for a study
To confirm the sample proportion is correct