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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

5.3 Finding Percentiles of the Normal Curve (Using the Table in Reverse)

Pregnancy lengths are normally distributed with a mean of 280 days and a standard deviation of 20 days. Nine months is approximately 273.6 days, what is the pregnancy length corresponding to the shortest one percent of pregnancies?