a.Under what conditions should a retailer use observation as a primary data source?
b.What are the major advantages to the use of observation versus surveys as a retail research technique?
c.What are the major disadvantages to the use of observation versus surveys as a retail research technique?

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The Answer of a.Under what conditions should a retailer use observation as a primary data source?
b.What are the major advantages to the use of observation versus surveys as a retail research technique?
c.What are the major disadvantages to the use of observation versus surveys as a retail research technique?

AUnder What Conditions Should a Retailer Use Observation as a Primary