2011_SS1_Homework 06 - Solutions

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Unformatted text preview: 19) For alpha = 0.05, the critical values for the above test are t critical = ± 2.074 20)Given the test statistic and critical values you found above, what should we conclude about the effect of the treatment? 1. Reject the null hypothesis. We conclude that there really is an effect of treatment. 2. Fail to reject the null hypothesis. We conclude that there is not sufficient evidence to say that there is an effect of this treatment. FYI: df = (n1 ­1)+(n2 ­1)=22, ! = 0.05 , t critical = ± 2.074 |tobserved| > |tcritical|, |3.00 | > |2...
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This note was uploaded on 02/17/2013 for the course PSYC 60 taught by Professor Ard during the Fall '08 term at UCSD.

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