L6 & L7 Social Science Statistics

 By the end of lesson 6, you should be able to:

  • Explain how a sampling distribution is created.
  • Determine the mean, 
  • standard deviation of a sample mean= st. dev. (of original data) divided by square root of n (or the sample size of each sample) 
  • and shape of a distribution of sample means.
  • any sample size larger than 30 (n>30) will be a normal distribution
  • State and apply the Central Limit Theorem 
  • and the Law of Large Numbers: if the sample size is large then the sample mean will be close to the population mean.
    • also called Law of Averages
    • also applies to proportions
REMEMBER:

* Understanding Sampling Distributions is key to understanding all of the statistical inference methods that will be talked about this year.


* The Z-score determines what you shade on the Normal Probability Aplet. If it is negative and asks for a value less than a number, you only shade once to the left. If the z-score is positive and asks for a value less than a number, shade to the left twice. If the z-score is positive and asks for a value greater than a number, shade to the right once and so on.

> x=z0+u (z-score times st. dev. + mean)



By the end of lesson 7, you should be able to:

  • Calculate probabilities using a distribution of sample means



z=value−meanstandard deviation=x¯−μσ/n−−√

Comments

Post a Comment

Popular posts from this blog

FAML 430 Week 9

  Perron (2019) The Impact of Visual Storytelling in Nonprofit Marketing Links to an external site. 11 Infographics About Infographics Links to an external site.  (scan only) The 16 best infographic makers in 2021 Links to an external site.  (scan only) https://www.psychologicalscience.org/publications/visual-data-communication.html Empathy Over the last few weeks, the topic of empathy has come up in your readings, exam responses, and many of your group discussions as we have learned about the importance of truly understanding the people that we are trying to serve in our community. Empathy is a common term used in the mental health field.  When describing this to my clients, I describe empathy as the ability to see and understand another person’s world or experience without getting lost in it.  An important step in both couples and family therapy is helping each individual to understand and express empathy when communicating. There are a variety of intervention...
Read more

FAML 430 Week 2

  Perhaps the first step in building community is getting to know one another as fellow passengers on the sojourn of life. Then the stranger and foreigner will become familiar. Then our shared beliefs and experience will surface and become a building block for both our sense of community and our tolerance and appreciation of our differences. Optional Readings and Resources If you desire to expand your understanding of Bronfenbrenner's Bioecological Model, you might explore the following articles: Bronfenbrenner & Morris (2007) The Bioecological Model of Human Development Links to an external site. The Vision of Urie Bronfenbrenner: Adults Who are Crazy About Kids Links to an external site.
Read more

Human Rights

  Human Rights and Capabilities Download Human Rights and Capabilities Bystanders to Genocide Links to an external site.  |  Bystanders to Genocide Accessible Version Download Bystanders to Genocide Accessible Version Human Rights and Cultural Relativism  Links to an external site. |  Human Rights and Cultural Relativism Accessible Version Download Human Rights and Cultural Relativism Accessible Version Justice Lost! The Failure of International Human Rights Law to Matter Where Needed Most  Links to an external site. |  Justice Lost! Failure of International Human Rights Law to Matter Where Needed Most Accessible Version   Download Justice Lost! Failure of International Human Rights Law to Matter Where Needed Most Accessible Version  
Read more