A 1 tailed and 2 tailed hypothesis ?

Thread starter faisal
Start date Jun 17, 2005

AI Thread Summary

A one-tailed hypothesis tests for a specific direction of an effect, such as "the mean is greater than 0.5," while a two-tailed hypothesis assesses whether there is any difference, as in "the mean is not equal to 0.5." The discussion also touches on various statistical tests, including the Wilcoxon test, Mann-Whitney test, Sign test, and chi-squared test, which are used to analyze data in relation to these hypotheses. Understanding the distinction between one-tailed and two-tailed hypotheses is crucial for proper hypothesis testing. Clear examples help illustrate these concepts effectively. Overall, the conversation emphasizes the importance of hypothesis formulation in statistical analysis.

Jun 17, 2005

faisal

a 1 tailed and 2 tailed hypothesis ??

a 1 tailed and 2 tailed hypothesis can some 1 provide me an example of a 1 tailed and 2 tailed hypothesis thank you
What IS A Wilcoxson test, Manny whitney, Sign Test & chi squared test

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Jun 17, 2005

HallsofIvy

Science Advisor

Homework Helper

Saying that "the mean is greater than .5" is a one tailed hypohesis. Saying that "the mean is not equalt to .5" (so that is may be greater than or less than") is a two tailed hhypothesis.

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