# Exam 1 SAMPLE WITH KEY.pdf - 9/22/2016 Exam 1 version A...

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9/22/2016Exam 1 version A1/151.2.3.Student:_____________________Date:_____________________Instructor:XIAOXING LIUCourse:MATH 1680.230 MWF 2­2:50PMAssignment:Exam 1 sampleDetermine whether the underlined value is a parameter or a statistic.The average score for a class of 28 students taking a calculus midterm exam was.72%Is the value a parameter or a statistic?A.The value is abecausea.parameterthe class of 28 students ispopulationB.The value is abecausea.parameterthe class of 28 students issampleC.The value is abecausea.statisticthe class of 28 students ispopulationD.The value is abecausea.statisticthe class of 28 students issampleDetermine whether the quantitative variable is discrete or continuous.Number of cars ownedIs the variable discrete or continuous?A.The variable isbecause itcountable.continuousisB.The variable isbecause itcountable.discreteisC.The variable isbecause itcountable.continuousis notD.The variable isbecause itcountable.discreteis notDetermine the level of measurement of the variable below.Highest degree conferred (high school, bachelor's, and so on)Choose the correct answer below.A.OrdinalB.IntervalC.NominalD.Ratio
9/22/2016Exam 1 version A2/154.1: Table I from Appendix A: Random NumbersA small community college employs 58 full­time faculty members. To gain the faculty's opinions about upcomingcontract negotiations, the president of the faculty union wishes to obtain a simple random sample that will consist of5 faculty members. She numbers the faculty 1 to 58.Using Table I from Appendix A, the president of the faculty union closes her eyes and drops her ink pen on thetable. It points to the digits in row, column 7. Using this position as the starting point and proceeding downward,determine the numbers for the 5 faculty members included in the sample.15Click the icon to view Table I from Appendix A.1Member 1:Member 2:Member 3:Member 4:Member 5:
9/22/2016Exam 1 version A3/155.6.To estimate the percentage of defects in a recent manufacturing batch, a quality control manager atselectseveryththat comes off the assembly line starting with theuntil she obtains a sample of.Ford15trucksecond60 trucksWhat type of sampling is used?A.StratifiedB.ClusterC.Simple randomD.ConvenienceE.SystematicTo determine her,divides up her day into three parts: morning, afternoon, and evening. She thenmeasures heratrandomly selected times during each part of the day.heart rate Carolynheart rate2What type of sampling is used?A.Simple randomB.SystematicC.ClusterD.ConvenienceE.Stratified
9/22/2016Exam 1 version A4/157.A phlebotomist draws the blood of a random sample of50 patients and determines their blood types as shown.

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