null+hypothesis

Null Hypothesis (Hypothesis Testing) (GWU EMSE-271)
Index | Topics (Logical Lectures) | Lectures | Problems | Readings | References | Concepts [confidence intervals | null hypothesis | acceptance and rejection terminology | Type I and Type II errors | power | p-value]

"In statistical hypothesis testing, the **null hypothesis** (H0) formally describes some aspect of the statistical behaviour of a set of data. This description is treated as valid unless the actual behaviour of the data contradicts this assumption. Thus, the null hypothesis is contrasted against another hypothesis." - [|Wikipedia]

Whether the null hypothesis is accepted ( fail to reject in statistical langauge), or the alternate hypothesis is accepted ( reject (the null hypothesis) is determined by performing statistical tests and determining the level of significance.

Possible Variance Hypotheses - EMSE 271, Fall 2009 (Slide 83)


 * Sources:**
 * EMSE 271, Fall 2009
 * Null hypothesis. (2009, September 9). In //Wikipedia, The Free Encyclopedia//. Retrieved 08:53, September 9, 2009, from []