Why must we be careful when merging data from different sources into one file? Explain.
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Q2: Why do we recommend saving one master
Q3: Why do we recommend including a worksheet
Q4: Suppose you have identified a good question
Q5: Personal survey data can be obtained through
A)the
Q6: When working with cross-section data,how do you
Q8: Why is it potentially valuable to perform
Q9: Private-use data includes
A)data that is available through
Q10: Time-series data is data collected
A)without replacement.
B)for a
Q11: Why are data management techniques so important?
Q12: Panel data are data collected
A)by independent,random sampling.
B)for
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