PreparED Study Materials
STAT 324: Introductory Applied Statistics for Engineers
School: University of Wisconsin - Madison
Number of Notes and Study Guides Available: 8
Notes
Videos
Cereal Box Weights: Z-Scores, Probabilities & Truth Behind Claims
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Explore the intricacies of evaluating cereal box weights using Z-scores and normal distribution. By examining both individual boxes and a sample mean, understand the probabilities of achieving certain weight values. Gain insights into how statistical tools help interpret real-world product claims.
Two-Sample T-Test: Analyzing Control vs. Supplemented Groups
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Explore the steps to conduct a two-sample t-test using a control and supplemented group. Through hypothesis testing, standard deviation, and P-value interpretation, we analyze the means of both groups to determine statistical differences.
Exit Poll Analysis: Education Funding Referendum Votes
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Explore the application of proportion z-tests in analyzing exit polling data. Understand how to determine the likelihood of sample results given a population proportion. Recognize the importance of considering non-sampling errors in interpreting exit poll outcomes.
Comparing Ages: Slot Machine vs. Roulette Players
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Examine the mean ages between two distinct groups: slot machine players and roulette enthusiasts. Utilizing the independent sample t-test, evaluate if there's a significant age difference between the two groups. The findings offer a nuanced understanding of player demographics in gaming environments.
Probabilities with Poisson Variables X1 & X2
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Explore the complexities of two independent Poisson random variables, X1 and X2, with means ?1 = 2 and ?2 = 3. Understand the process of calculating specific event probabilities and the application of the Poisson formula. Key takeaways include the manipulation and interpretation of these statistical values.
Uniform Data: Probabilities of Sample Means
Want To Learn More? To watch the entire video and ALL of the videos in the series:
This video offers a comprehensive look into the discrete uniform population, analyzing a sample size of 54 selected with replacement. Through calculated steps, viewers learn how to determine probabilities for a sample mean within specified limits. Utilizing Z-scores and standard normal tables, the session illuminates statistical principles in real-world scenarios.