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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 182: Customers at a “fast” food establishment want their food fast. To determine the median wait time at Taco Bell in the Miami area, 16 graduate students randomly selected 16 Taco Bell stores. Each student visited a Taco Bell store at 12:15 p.m. and ordered a crunchy beef taco, a burrito supreme, and a soda. The wait time to receive the meal was recorded for each restaurant. At the 5% significance level, test the claim that the median wait time is longer than 20 minutes.
Restaurant 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Wait Time 23 19 15 25 30 22 18 23 24 17 21 22 26 40 20 14