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The next step is to determine the sources of data to be used. The researcher has to decide whether he has to collect primary data ror depend exclusively on secondary data. Sometimes the research study is based on both secondary and primary data.
When a study is to be based on secondary data whether partly or fully it is necessary to satisfy oneself that the data are quite suitable for the objectives spelt out by the study. It is also advisable to evaluate secondary data in detail to avoid possible sources of error. It is only when such secondary data are unavailable inadequate or unreliable that a researcher should decide on collecting fresh data.
Once the decision in favour of collection of primary data is taken one has to decide the mode of collection. The two methods available are observational methods and survey methods.
A. A computer rejuvenation facility receives systems from the fleet at 24 systems/day (assume this is a Poisson process). It takes the triage function 30 minutes (assumed exponen
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The lifetime T (in days) of an electrical component has reliability function given by: R(t) = e - 0 : 01 t for time t > 0. An electrical system consists of four such component
difference between regression or non-regression
advantages an d disadvantages of various measures o f dispersion
Long before Bohr gave his theory of hydrogen atom, various scientists had observed experimentally, the spectral series of hydrogen atom. Bohr offered a theoretical explanation of t
What are the assumptions of the technique?
CRSL has a large auditorium which can cater for 300 people and is ideal for formal balls and functions. The auditorium can also be reconfigured to cater for 100 people. The Seasons
In a sample of 120 workers in a factory, the mean and standard deviation of wages were Rs. 11.35 and Rs.3.03 respectively. Find the percentage of workers getting wages between Rs.9
Question 1 Water resources in many parts of Australia are being closely watched and restrictions have been imposed on activities such as garden watering. Suppose that SA Water
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