Chapter 1-3 Assignments

# Chapter 1-3 Assignments - Chapter 1 Data Collection 1.1#s...

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Chapter 1: Data Collection §1.1 #’s 1-17, 19, 23, 26-33, 39, 40 1) Statistics is the science of collecting, organizing, summarizing, and analyzing information in order to answer questions or draw conclusions. The process is to identify the research objective and collect the information to answer the question, organize and summarize the information and draw conclusions from the information. 2) Sample is a division of the population. Population is the area that we try to get information from. Sample is a section of the population that is being studied. 3) Information 4) Individual 5) Descriptive – Inferential 6) Double-blind means neither the person who is examining the group nor the person/people that is/are being examined know who are experimental or control group. A group of people will receive the drug while the other one will receive a placebo. 7) Experimental group is the group that receives the treatment or drug while the control group is being given a placebo or known treatment. 8) Placebos are sugar pills. According to many studies, it is proven that some people believe that the pills would help them feel better, or seeing a doctor made the difference in their heath. 9) Variables 10) Qualitative variables are classified based on their characteristics and quality, and Quantitative variables are the numerical measurement of the individuals, mathematical results. 11) Both of them are Quantitative variables. Discrete variable has a finite number or countable numbers of possible numbers. Continuous variable has an infinite number of possible values that are not countable. 12) True 13) Find the research objective. Collect the information on the question that will come out of identifying the objective. Systematize and summarize the information. Bring in the conclusion from the information. 14) Yes, if we can measure the age. Getting your driver’s license, or the age you can marry. 15) Qualitative 16) Quantitative 17) Qualitative 19) Quantitative 23) Quantitative 26) Qualitative 27) Discrete 28) Continuous

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29) Continuous 30) Discrete 31) Discrete 32) Continuous 33) Continuous 39) Population = Teenagers 13-17 years old lives in the US. Sample = 1028 teenagers, 13-17 years old contacted by Gallup org. 40) Population = 50 bottles of Coca-Cola that were filled by a specific machine on October 15. Sample = 50 bottles of Coco-Cola chosen by quality control manager. §1.2: #’s 1-14, 19, 21 (DO NOT use Table I), 25a 1) Researchers do not claim causation from an Observational study, so that is being said Observational study do not control variables that can affect the result. On the other hand in Experiment, researchers do control the outcome called Lurking Variable. Observational study can be a great tool to see if there is a connection between two variables, however it needs experiment to prevent the cause of the relation.
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Chapter 1-3 Assignments - Chapter 1 Data Collection 1.1#s...

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