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Unformatted text preview: ClassWork #3 (Sections 5A & 5B) (10 pts) Name________________________________ MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Solve the problem. 1) For the study described below, identify the sample statistic. A manufact urer of light bulbs wants to determine the average lifetime of its 75 watt light bulbs. Among 120 randomly selected 75 watt light bulbs, the average lifetime was 1007 hours. 1) _______ A) The 120 randomly selected 75 watt light bulbs B) 120, the number of light bulbs in the sample C) The average lifetime of the 120 randomly selected 75 watt light bulbs D) The average lifetime of all 75 watt light bulbs manufactured by the company 2) For the study described below, identify the populatio n parameter . A researcher is interested in the level of stress among emergenc y room nurses in the U.S. 275 emergenc y room nurses were interview ed to determine their level of stress. Each nurse was assigned a stress rating based on his or her answers...
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This note was uploaded on 04/14/2008 for the course MATH 1013 taught by Professor Booker during the Spring '08 term at Texas Woman's University.
 Spring '08
 booker

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