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| Teaching Since: | May 2017 |
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| Questions Answered: | 19234 |
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MBA (IT), PHD
Kaplan University
Apr-2009 - Mar-2014
Professor
University of Santo Tomas
Aug-2006 - Present
Critical value is 1.51
The confidence interval is 87%. It is the same as 0.87. ##(.87/2)## = 0.435
Consult the Area Under Normal curve table. It is available in all the statistics book.
Look for a value in the probability area that is very close to 0.435. It is 0.4345 in the table. Find the corresponding z - value .
In the picture given below, follow the arrow mark.
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