PreparED Study Materials

ST 708: ST 708

School: North Carolina State University

Number of Notes and Study Guides Available: 1

Notes

Videos

Computing Probabilities: College Students & Computer Ownership
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Understand the probabilities of computer ownership among university first-year students through various scenarios. This video breaks down calculations for chances of ownership and non-ownership among random groups.

Analyzing U.S. Teacher Salaries: Where Do You Stand?
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Explore the salary distribution of U.S. teachers using statistical analysis. Understand the probabilities of different salary brackets and evaluate a potential job offer in the context of nationwide data.

Thread Strength After Heat Treatment: A 99% Confidence Analysis"
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Explore the impact of heat treatment duration on thread breaking strength. Using statistical analysis, we assess the difference in mean strengths between batches. Confidence intervals help quantify this difference with 99% certainty.

Probabilities with Poisson Variables X1 & X2
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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.

Analyzing Ford F-750 Mileage Using Z-Scores & Probabilities
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Explore how z-scores help analyze the mileage of Ford Super Duty F-750 trucks. Discover the percentages that reached specific mileage markers and grasp the significance of data using the z-table.

Car Theft Rates: Does Your Car Type Influence Risk?
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Explore the relationship between specific car types and their theft rates. This video assesses correlations between car models like the Honda Accord, Toyota Camry, and others, emphasizing the difference between correlation and causation.

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