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Analysis of covariance (ANCOVA)
It is initially used for an expansion of the analysis of variance which permits to the possible effects of continuous concomitant variables (such as covariates) on the response variable, additionally to the effects of the factor or the treatment variables. Generally supposed that covariates are unaffected by the treatments and that their relationship to the response is linear in nature. If such a relationship exists then the inclusion of covariates in this means decreases the error mean square and thus increases the sensitivity of the F-tests used in assessing the treatment differences. The term now seems to also be more generally used for almost any of the analysis seeking to assess the relationship among response variable and a number of the explanatory variables
The following are the various types of common averages used in statistical analysis given in the form of a chart. Figure 1
Waht is the product of £ x
The Maju Supermarket stocks Munchies Cereal. Demand for Munchies is 4,000 boxes per year and the super market is open throughout the year. Each box costs $4 and it costs the store
To compare three brands of computer keyboards, four data entry specialists were randomly selected. Each specialist used all three keyboards to enter the same kind of text material
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Active Control Equivalence Studies (ACES) Clinical trials the field in which the object is easy to show that the new treatment is as good as the existing treatment. Such type
Analysis of covariance (ANCOVA) It is initially used for an expansion of the analysis of variance which permits to the possible effects of continuous concomitant variables (suc
A country''s national accounts are assumed to look as follows: GDP 1180 VAT and taxes 140 Commodity subsidies 60 Raw material and consumables 530 1. Calculate GVA 2. Calculate t
Why are graphs and tables useful when examining data? A researcher is comparing two middle school 7th grade classes. One class at one school has participated in an arts program
Caveat We must be careful when interpreting the meaning of association. Although two variables may be associated, this association does not imply that variation in the independ
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