Question
1.How does a t test differ from a z test? 2.What is the formula for degrees of freedom? If you have 18 in your sample
1.How does a t test differ from a z test?
2.What is the formula for degrees of freedom? If you have 18 in your sample population, what are your degrees of freedom?
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Mathematical Excursions
Authors: Richard N Aufmann, , Joanne Lockwood, Richard D Nation, Daniel K Clegg
3rd Edition
1305161793, 9781305161795
