Ch 1 secs 3-5

Ch 1 secs 3-5 - MAT150StatisticsI Lesson2 Mr.Horwitz...

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Mr. Horwitz September 13, 2010 Chapter 1 Sections 3-5 MAT-150 Statistics I Lesson 2
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Design a statistical study What type of study are you going to do?  Identify the variables of interest and the population  of the study. Develop a plan for collecting data.  If you use a  sample, make sure the sample is representative of the  population. Collect the data Interpret the data and make decisions about the  population using inferential statistics. Identify any sources of error.
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What type of study are you going to do? Observational study – where the researcher observes  and measures characteristics of interest of part of a  population but does not change the existing  conditions.  Ex. Study of animals in the wild. Perform an experiment – a treatment is applied to  part of a population and responses are observed.  Ex.   Science Class Use a simulation – is the use of a mathematical or 
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This note was uploaded on 12/09/2011 for the course STATS 221 taught by Professor Nielson during the Fall '10 term at BYU.

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Ch 1 secs 3-5 - MAT150StatisticsI Lesson2 Mr.Horwitz...

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