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Canadian confidence interval - PowerPoint PPT Presentation

Point Estimates and CI

Point Estimates and CI. A basic tool in statistical inference is point estimate of the population parameter. However, an estimate without an indication of its variability is of little value. Example:

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Exercises

Exercises. Z ~ N(0, 1). Find P (-1.96 < Z < 1.96). Z ~ N(0, 1). Find the value of c such that P(- c < Z < c ) = 0.95. Z ~ N(0, 1). Find the value of c such that P(- c < Z < c ) = 0.90. X ~ N(500, 15). Find the values of c and d such that P( c < X < d ) = 0.95.

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Canadian confidence interval - PowerPoint PPT Presentation

Point Estimates and CI

Exercises