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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
7.2 Large-Sample Confidence Intervals for a Population Mean
For problems 1 and 2, use the provided information to construct a confidence interval to estimate the population mean.
1. Salaries of college statistics professors at Florida public universities: Confidence level = 95%, n =36, sample mean = $85,113, and standard deviation = $11,024.
2. Speeds of drivers ticketed in a 65mph zone: Confidence level = 98%, n = 31, sample mean = 81, and standard deviation = 3.4.
STATS1
STATS2
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