Final Practice

Final Practice - View Attempt

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View Attempt 1 of unlimited Title: MTH 316 Final Exam Practice Started: December 1, 2010 7:20 PM Submitted: December 1, 2010 10:58 PM Time spent: 03:37:29 Total score: 35/50 = 70% Total score adjusted by 0.0 Maximum possible score: 50 Done 1. Identify the variable in the information below. Government agencies carefully monitor water quality and its effect on wetlands (Reference: Environment Protection Agency Wetland Report EPA 832-R-93-005). Of particular concern is the concentration of nitrogen in water draining from fertilized lands. Too much nitrogen can kill fish and wildlife. Twenty-eight samples of water were taken at random from a lake. The nitrogen concentration (milligrams of nitrogen per liter of water) was determined for each sample. Student Response Value Correct Answer Feedback 1. quality of water 0% 2. nitrogen concentration 100% 3. none of these choices 0% 4. quantity of water 0% 5. lakes 0% Score: 1/1 Comments: 2. Identify whether the variable in the information below is qualitative or quantitative. Government agencies carefully monitor water quality and its effect on wetlands (Reference: Environment Protection Agency Wetland Report EPA 832-R-93-005). Of particular concern is the concentration of nitrogen in water draining from fertilized lands. Too much nitrogen can kill fish and wildlife. Twenty-eight samples of water were taken at random from a lake. The nitrogen concentration (milligrams of nitrogen per liter of water) was determined for each sample. Student Response Value Correct Answer Feedback 1. qualitative 0% 2. neither qualitative nor quantitative 0% Your location: Assessments View All Submissions › View Attempt View Attempt http://webctap.gardner-webb.edu/webct/urw/lc9821263. .. 1 of 25 12/1/2010 10:58 PM
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Response Value Correct Answer Feedback 3. qualitative as well as quantitative 0% 4. quantitative 100% 5. Information does not have any variable. 0% Score: 0/1 Comments: 3. Identify the implied population in the information below. The archeological site of Tara is more than 4000 years old. Tradition states that Tara was the seat of the high kings of Ireland, because of its archeological importance, Tara has received extensive study (Reference Tara: an Archeological survey by Conor Newman, Royal Irish Academy, Dublin). Suppose an archeologist wants to estimate the density of ferromagnetic artifacts in the Tara region. For this purpose, a random sample of 55 plots, each of size 100 square meters, is used. The number of ferromagnetic artifacts for each plot is determined. The variable in this information is number of ferromagnetic artifacts per 100 square meters. Student Response Value Correct Answer Feedback 1. number of ferromagnetic artifacts per each distinct 100-square- meters plot in the Tara region 100% 2. density of ferromagnetic artifacts in some of the plots 0% 3. number of ferromagnetic artifacts per 100-square- meters 0% 4. none of these choices 0% 5. number of ferromagnetic artifacts per 100-square-
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This note was uploaded on 05/26/2011 for the course MTH 316 taught by Professor Null during the Fall '10 term at GWU.

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Final Practice - View Attempt

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