Confidence Level Table - Search Videos

Finding the Appropriate z Value for the Confidence Interval Formula (Using a Table)

I show how to find the appropriate z value (using the standard normal table) when calculating a confidence interval. The version of the table used in this video gives the area to the left of the z value (and not the area between 0 and z). For those that use R, below is the R code to find the values (see the video for illustrations). z value for ...

366.9K viewsApr 30, 2013

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