Statistical Inf for Mean 1

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Normal Distribution Objectives: (Chapter 7, DeCoursey) - To define the Normal distribution, its shape, and its probability function - To define the variable Z, which represents the number of standard deviations between any point x and the mean μ . - To demonstrate the use of Normal probability Tables and Excel functions for solving Normal distribution problems.

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Normal Distribution - Symmetrical - Shaped like a “bell” - Mean, median and mode coincide - Sometimes referred to as the Gaussian distribution.
Normal Distribution Probability function for the Normal distribution: ) ( 1 2 ] 2 exp[ 2 ) ( 2 σ μ π σ = x x f μ : specifies the location of the center of the distribution; σ : : specifies the spread.

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