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apple321 apple321
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If you wish to estimate the difference between two population means and the population variances are known, a 99% confidence interval estimate can be found by using which of the following critical values?


1.615



1.96



2.33



2.575

Textbook 
Introductory Statistics: A Problem-Solving Approach

Introductory Statistics: A Problem-Solving Approach


Edition: 3rd
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DratiniDratini
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apple321 Author
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A year ago
this is exactly what I needed
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Thanks for your help!!
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Helped a lot
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