15. sheena collected customers opinions towards a certain product.
A. experiment method
B. interview method
C. observation method
D. questionnaire method
16. kael want to get a television rating
A. experiment method
B. interview method
C. observation method
D. questionnaire method
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Answer:
15. Sheena collected customers opinions towards a certain product.
A. experiment method
B. interview method
C. observation method
D. questionnaire method
16. Kael want to get a television rating.
A. experiment method
B. interview method
C. observation method
D. questionnaire method
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