Type one error on one sample t test

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A researcher conducts a one-tailed one-sample t test on 25 subjects and finds that t = 1.89. How confident can the researcher be that the results are true and not due to mere sampling error?  

Apr 11th, 2015

The test has a t- value of 1.89 (one-tailed)  and degrees of freedom 24

Using a t calculator the confidence level is roughly 97% that his result is true

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Type 1 error t test.docx 

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Apr 11th, 2015

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Apr 11th, 2015
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