Statistical Literacy Consider a hypothesis test of difference of means for two independent populations x1 and x2.
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Statistical Literacy Consider a hypothesis test of difference of means for two independent populations x1 and x2. Suppose that both sample sizes are greater than 30 and that you know s1 but not s2. Is it standard practice to use the normal distribution or a Student’s t distribution?
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Related Book For 
Understandable Statistics Concepts And Methods
ISBN: 9780357719176
13th Edition
Authors: Charles Henry Brase, Corrinne Pellillo Brase
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