PreparED Study Materials
ILRST 5953: MPS Professional Development at First Semester
School: Cornell University
Number of Notes and Study Guides Available: 0
Videos
Uniform Data: Probabilities of Sample Means
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
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.
Analyzing Student Homework Times: Quartiles & Data Insights
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Examine a dataset that tracks student homework durations. Understand quartiles, the interquartile range, and skewness in the data. Discover insights into typical study durations and outlier behaviors.
Calculating Permutations: 720 Ways to Arrange 6 Objects
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Discover the principles of permutations with 6 distinct objects. Learn the ins and outs of factorial calculation and its application to combinatorics. Grasp the method to find the number of unique arrangements for any set of items.
Comparing Ages: Slot Machine vs. Roulette Players
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
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.
Lake Macatawa Bacteria: 90% Confidence Analysis
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Discover the method to analyze bacteria colonies in Lake Macatawa's east basin. Using 30 samples, we compute a 90% confidence interval for the mean colony count. Learn the steps of statistical analysis in environmental studies.
Analyzing Movie Habits Survey: Uncovering Hidden Biases
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Unpack the potential biases in a survey about movie-watching habits based on its design and constraints. Learn how limiting to residential phones and specific time frames can affect results. Recommendations are made to ensure a broader, more accurate perspective.