Test5B-1 - Test 5B A P Statistics Name: Directions: Work on...

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Test 5B A P Statistics Name: Directions: Work on these sheets. A random digit table is provided separately. Part 1: Multiple Choice. Circle the letter corresponding to the best answer. A chemical engineer is designing the production process for a new product. The chemical reaction that produces the product may have a higher or lower yield depending on the temperature and the stirring rate in the vessel in which the reaction takes place. The engineer decides to investigate the effects of combinations of two temperatures (50˚C and 60˚C) and three stirring rates (60 rpm, 90 rpm, and 120 rpm) on the yield of the process. Ten batches of feedstock will be processed at each combination of temperature and stirring rate. 1. What are the experimental units? (a) The two temperatures (50˚C and 60˚C) (b) The three stirring rates (60 rpm, 90 rpm, and 120 rpm) (c) The two temperatures and the three stirring rates (d) The batches of feedstock (e) None of the above. The answer is 2. Identify all factors (explanatory variables). (a) The two temperatures (50˚C and 60˚C) (b) The three stirring rates (60 rpm, 90 rpm, and 120 rpm) (c) The two temperatures and the three stirring rates (d) The batches of feedstock (e) None of the above. The answer is __________________________. 3. What is the response variable? (a) The two temperatures (50˚C and 60˚C) (b) The three stirring rates (60 rpm, 90 rpm, and 120 rpm) (c) The two temperatures and the three stirring rates (d) The batches of feedstock (e) None of the above. The answer is
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This note was uploaded on 01/25/2011 for the course ECON 123 taught by Professor Scruble during the Winter '10 term at California Maritime Academy.

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Test5B-1 - Test 5B A P Statistics Name: Directions: Work on...

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