"A null hypothesis, generally denoted by the symbol H0, is any hypothesis which is to be tested for possible rejection or nullification under the assumption that it is true. A null hypothesis should always be precise such as „the given coin is unbiased‟ or „a drug is ineffective in curing a particular disease‟ or „there is no difference between the two teaching methods‟. The hypothesis is usually assigned a numerical value. For example, suppose we think that the average height of students in all colleges is 62″. This statement is taken as a hypothesis and is written symbolically as H0 : μ = 62″. In other words, we hypothesize that μ = 62″. Source: http://in.docsity.com/en-docs/T_Distribution-Statistics-Solved_Quizes_"
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