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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.
To study what fraction of houses for sale in Victoria has a finished basement, a researcher selected a random sample of 20 houses that were on the market. It was found that 11 of t
It is a numerical average, as equal to the sum of terms in a given series divided by the number of terms in that series is the mean which is also called the expected value.
Question: The weights shown in the figure are in equilibrium. It consists of objects held by vertical strings. The object 3 weighs 1.4 N. The horizontal bars are identical, uniform
Conduct a test to determine if the proportion of males that responded true to the statement in the survey that, "Whole foods (i.e. raw vegetables and meats) contain sodium," is dif
Stratified Sampling: If the population from which a sample is to be drawn does not constitute a homogenous group, then stratified sampling technique is applied so as to obtain a re
Find the kinematic and dynamic viscosities of air at a temperature of 189°F and a pressure of 29 psia using Sutherland''s equation and the ideal gas law .
the resultant of two perpandicular forces of magnitude p each will be
'Statistics is the backbone of decision-making'. Comment.
LIST OUT THE SOURCES OF PRIMARY AND SECONDARY DATA
Fertility: In order to study at which speed, at which the population is increasing, fertility rates are used which are of various types? Important among these are: Crude birth rat
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