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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.
An individual has $ 100 initially. He repeatedly plays a game of chance in which he earns $ 100 with probability 0.8 or loses $ 100 with probability 0.2. The stops playing at the f
What is a hypothesis test? Why do we need to use them to make decisions about relating sample results to the population; why can’t we just make our decisions by the sample value?
A travel agency surveyed 38 customers holidaying in Australia who took their spouses on either a skiing or a golfing vacation. The data comprises amounts (in hundreds of dollars).
The study of radioactive disintegrations indicates the emission of alpha, beta and gamma particles/rays to be of nuclear origin. Further, study of artificial radioactivity has reve
Multi stage Sampling: This is a further development of cluster sampling. This techniques is meant for big inquiries extending to a considerably large l geographical area like an en
Automatic interaction detector (AID) A method or the technique which uses a set of categorical explanatory variables to divide data into the groups which are relatively homoge
Question: Students in a science class have just received their grades on the first test. The instructor has provided information about the first test grades in some previous c
). Calculate Karl Pearson’s coefficient of correlation from the following data , using 20 as the working mean for price and 70 as the working mean for demand: Price: 14 16 17 18 1
Hi I have done my report based on SPSS data but need a help for deeper analyzing and correcting this what I have already done. Would you be able to help me and if so how much would
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