Week 4.docx - Week 4 Probability Sampling Distributions and Confidence Intervals Life is filled with uncertainty Thomas Dietz Professor Author Linda

# Week 4.docx - Week 4 Probability Sampling Distributions and...

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Week 4: Probability, Sampling Distributions, and Confidence Intervals Life is filled with uncertainty. —Thomas Dietz, Professor, Author —Linda Kalof, Professor, Author Our daily lives revolve around things that we cannot control. Before we step out the front door we ask, will it rain today? What is the chance of getting stuck in traffic? Or better yet, will my class be cancelled? Even though Dietz and Kalof (2009) suggest that life is uncontrollable, we still try to feel a small sense of control through a smart use of statistics. Probability helps us to understand and cope with the seemingly uncertain decisions of life. Uncertainty is also present in our samples since we rarely have the ability to measure the entire population. Understanding probability also assists us in obtaining accurate, representative samples. From probability-based samples we can construct confidence intervals to obtain a range of values in which our population value may lie. In this week, you will explore probability as it relates to an observed occurrence. You also will explore the concept of the sampling distribution as well as confidence intervals of specific data. Finally, you explore the results of data to determine implications for social change. Learning Objectives Students will: Evaluate various distributions Evaluate confidence intervals Create visual displays of data Analyze data from datasets Analyze implications for social change Photo Credit: [Dean Millar]/[E+]/Getty Images Learning Resources Required Readings Frankfort-Nachmias, C., & Leon-Guerrero, A. (2018). Social statistics for a diverse society (8th ed.). Thousand Oaks, CA: Sage Publications. Chapter 5, “The Normal Distribution” (pp. 128-150) Chapter 6, “Sampling and Sampling Distributions” (pp. 151-178) Chapter 7, “Estimation” (pp. 179-201) Wagner, W. E. (2016). Using IBM® SPSS® statistics for research methods and social science statistics (6th ed.). Thousand Oaks, CA: Sage Publications. Chapter 3, “Selecting and Sampling Cases” Chapter 5, “Charts and Graphs” Chapter 11, “Editing Output”

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Magnusson, K. (n.d.). Welcome to Kristoffer Magnusson’s blog about R, Statistics, Psychology, Open Science, Data Visualization [blog]. Retrieved from As you review this web blog, select the Interpreting Confidence Intervals – new d3.js visualization link, once you select the link, follow the instructions to view the interactive for confidence intervals. This interactive will help you to visualize and understand confidence
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