Chapters 1 and 2 Examples

# Chapters 1 and 2 Examples - Chapters 1 and 2 Notes Examples...

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Chapters 1 and 2 Notes Examples Page 1 of 3 Notes Correction: Definition of SRS ± Simple Random Sample of size n – consists of n individuals from the population chosen in such a way that every set of n individuals has an equal chance to be the sample actually selected. Examples ± The administration of a high school would like to determine if a new study course will increase scores of juniors on a basic skills test. A random sample of 100 juniors is selected to take the study course. (Remember) Individuals: Juniors, Variable: Scores on basic skills test ² What is the population? All juniors ² What is the sample? 100 juniors selected ² What type of study? Experiment ± According to the Atlanta Journal-Constitution (Nov. 4, 2003), the average age of viewers of MSNBC cable television news programming is 58 years. Suppose a rival network executive hypothesizes that the average age of MSNBC news viewers is less than 58. To test her hypothesis, she samples 500 MSNBC news viewers and determines the age of each. ± What is the population? A. All news viewers

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## This note was uploaded on 02/14/2011 for the course STAT 110 taught by Professor Johnson during the Fall '07 term at South Carolina.

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Chapters 1 and 2 Examples - Chapters 1 and 2 Notes Examples...

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