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Primary and Secondary Data:
Primary Data: These data are those are collected for the first time. Thus primary data are original in character and gathered by actual observation, measurement or enumeration. these data are called primary because they are collected from the very source from where information got generated.
Secondary Data: These data are those which have already been collected by other persons or other agency, in other words secondary data are those which have been passed through the statistical machine at last once. These data are detached from the original source and are reprocessed by another person for his won purpose and publication.
The data which are primary in the hands of one may secondary in the hands of others. For example the census of population statistics collected by the government is primary data, if the same data are used by other investigator for his survey, will be called secondary data .thus the statistical data which are new in the hands of investigator are primary, while the same data use by another investigator will become secondary.
Use the given information to find the P-value. The test statistic in a two-tailed test is z = 1.49 P-value = (round to four decimal places as needed)
A new weight-watching company, Weight Reducers International, advertises that those who join will lose, on the average, 10 pounds the first two weeks with a standard deviation of 2
how to write result in the end of price index number problem
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Waht is the product of £ x
What is an interaction? Describe an example and identify the variables within your population (work, social, academic, etc.) for which you might expect interactions?
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Properties of correlation
Each section of the SAT test is supposed to be distributed normally with a mean of 500 and a standard deviation of 100. Suppose 5 students in a class took the SAT math test. They r
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