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Course Documents

Chapter 1 - Intro

Chapter 2 - Methods for Describing Sets of Data

Chapter 3 - Probability

Chapter 4 - Discrete Random Variables

Chapter 5 - Normal Random Variables

Chapter 6 - Sampling Distributions

Chapter 7 - Confidence Intervals

Chapter 8 - Tests of Hypothesis: One Sample

Chapter 9 - Confidence Intervals and Hypothesis Tests: Two Samples

Sample Exam I: Chapters 1 & 2

Sample Exam II: Chapters 3 & 4

Sample Exam III: Chapters 5 & 6

Sample Exam IV: Chapters 7 & 8

Lecture Examples

Example 137.5 Student loan debt is a concern for many college bound high school seniors. In Miami, the two top research schools are Florida International University and the University of Miami. A sample of 29 recent graduates from FIU who borrowed money for school had an average debt load of $16,026 and a standard deviation of $10,738. A sample of 29 recent graduates from UM who borrowed money for school had an average debt load of $26,438 and a standard deviation of $16,203. Use the data from the two randomly selected groups of college graduates to construct a 99% confidence interval estimate of the true difference between the average amount of student loan debt carried by FIU graduates and UM graduates.