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This methods implies the collection of information by way of investigator own observation without interviewing the respondents. While the observational methods may be suitable in case of some studies several things of interest such as attitudes opinions motivations and other intangible state of mind cannot be observed. Another aspect of this method is that it is non reactive as data are collected unobtrusively without the direct participation of the respondent. This method sis an expensive method sand the information provided by this method is also very limited. As such this method is not suitable in inquiries where large samples are concerned.
why are assets always equal to liabilities
The following data relating cigarette smoking and death rates for lung cancers in 14 states in the USA. The data are based in part on records concerning 1960 cigarette tax receipts
How to interpret Anova
How do I calculate the temperature change of a sample?
A nurse researcher is investigating the effect of timing of standard pain control interventions on severity of pain in adolescents with sickle-cell disease. She establishes three
Q. How to Choose a Sample? The way a sample is chosen is extremely important in all statistical studies. This is because, ultimately, all the inferences will be based on the s
What are the uses of measures of dispersion in the field of civil engineering?
The dataset also contains a variable y , which is the dependent variable of interest, as well as x1 , x2 , x3 , x4 , x5 , and x6 , all explanatory variables that are potentially
Two construction contracts are to be randomly assigned to one or more of three firms. Numbering the firms I, II, and III, let X1 be the number of contracts assigned to firm I, and
how can we construct a bivariate frequency distribution
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