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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
9.1 Z-Interval to Compare Two Population Means: Independent Samples
Business majors are the group of students with the lowest verbal reasoning scores on the GRE; Humanities majors have the highest verbal reasoning scores. A large sample confidence interval between verbal GRE scores for business majors and humanities majors was created. The result was as follows:-177 < μbus - μhum < -30.99. Is there a significant difference?
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