Chemistry: An Introduction to General, Organic, and Biological Chemistry (12th Edition)

Published by Prentice Hall
ISBN 10: 0321908449
ISBN 13: 978-0-32190-844-5

Chapter 1 - Section 1.2 - Scientific Method: Thinking Like a Scientist - Questions and Problems - Page 6: 1.9e

Answer

(O) - It is an observation.

Work Step by Step

After two weeks of the experiment Chang conducted in order to prove his hypothesis that the house salad needed a new dressing in order to improve the sales, Chang observed that the orders of the house salad with the new sesame seed dressing had doubled.
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