Must the variable under consideration be normally distributed for you to use the ?-interval procedure or ?-interval procedure? Explain your answer. 5. Must the variable under consideration be normally distributed for you to use the z-interval procedureor t-interval procedure? Explain your answer.

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Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter5: Inverse, Exponential, And Logarithmic Functions

Section5.3: The Natural Exponential Function

Problem 44E

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Must the variable under consideration be normally distributed for you to use the ?-interval procedure or ?-interval procedure? Explain your answer.

5. Must the variable under consideration be normally distributed for you to use the z-interval procedure
or t-interval procedure? Explain your answer.

Features Features Normal distribution is characterized by two parameters, mean (µ) and standard deviation (σ). When graphed, the mean represents the center of the bell curve and the graph is perfectly symmetric about the center. The mean, median, and mode are all equal for a normal distribution. The standard deviation measures the data's spread from the center. The higher the standard deviation, the more the data is spread out and the flatter the bell curve looks. Variance is another commonly used measure of the spread of the distribution and is equal to the square of the standard deviation.

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