# Quiz for MATH 453 - Statistics with Cruz-Cano at Texas A & M University-Texarkana (A&M-Texarkana)

## Quiz Information

 Material Type: Quiz Professor: Cruz-Cano Class: MATH 453 - Statistics Subject: Mathematics University: Texas A & M University-Texarkana Term: -- Keywords: Lurking VariableJudgment SamplingConvenienceVariabilityRepresentativeConfoundingResponse VariableRepresentative SampleConvenience SamplingRandom Number

## Sample Document Text

Math 453 “Statistics” Spring 2009 Quiz #13 Name:_________________________ Problem #1:_________________ Total: __________________ 1. A magazine asks readers to write in saying whether they agree with a statement about dating. What, potentially, is the main problem with this survey? A. Bias due to voluntary response B. Too much variability in the opinions C. Size bias D. A lurking variable E. Bias due to judgment sampling 2. A medical doctor estimates the prevalence of broken arms by studying the records of his own patients. What, potentially, is the main problem with this study? A. Bias due to voluntary response B. Too much variability in the prevalence of broken arms C. Measurement bias D. A lurking variable E. Bias due to convenience sampling 3. Identify which type of sampling design is being used in each scenario. a. A school administrator randomly selects 12 classes from your school and then randomly selects five students from each class to study a school library issue....

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