# Posts by Mrs. Nation

Total # Posts: 2

**Psychology**

(a) and (c) Ho: u(ex) - u(ct) = 0 Ha:u(ex) – u(ct) is not equal to 0 Test stat: t = (38-35) / sqrt[9/20 + 25/30] = 2.6482 p-value = 2*P(t > 2.6482 with df = 48) = 0.0109 Conclusion: At the 5% significance level, reject Ho because the p-value is less than 5%

*September 23, 2010*

**sattistics**

(a) and (c) Ho: u(ex) - u(ct) = 0 Ha:u(ex) – u(ct) is not equal to 0 Test stat: t = (38-35) / sqrt[9/20 + 25/30] = 2.6482 p-value = 2*P(t > 2.6482 with df = 48) = 0.0109 Conclusion: At the 5% significance level, reject Ho because the p-value is less than 5% I need part...

*July 18, 2009*

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