Friday, May 8, 2009

May 9, 2009 - Extra Credit Questions

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In your work groups, you will receive extra credit for each question you answer correctly (post answers under your work group): 1. In a s...
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May 9, 2009 - Content Covered

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CONTENT COVERED Elementary Statistics—Picturing the World: o Chapter 9, Section 9.1, “Correlation,” pp. 458–473 o Chapter 9, Section 9.2, “L...

May 9, 2009 - Animation, follow this www link

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http://media.pearsoncmg.com/ph/esm/esm_larson_statlet_questions_2e/Leverage_Statlet/leverage.html Included here is an animation that illustr...
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May 9, 2009 - Problem One

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Problem 1: Excel has built-in functionalities that facilitate graphing of scatter plots and calculation of correlation coefficients r. Follo...
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May 9, 2009 - Correlation Notes

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A. Correlation A correlation is a relationship between two variables. The correlated variables can be represented by an ordered pair (x, y) ...
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May 9, 2009 - Review and Analysis - Quick T/F Quiz

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We have learned basic concepts and formulas to decide whether a relationship exits between two variables. They learn to present paired data ...
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May 9, 2009 - CORRELATION AND REGRESSION

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Overview - Key Concepts A. Introduction to Correlation a) Scatter plots b) Correlation coefficient B. Linear Regression a) Defining regressi...
Friday, May 1, 2009

May 2, 2009 - Extra Credit Questions

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BONUS CREDIT QUESTIONS - For each question you post in your work groups correctly, you will be given 1 extra point, for a possibility of 10 ...
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May 2, 2009 - Homework, Chapter 8

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Complete the following 4 questions in your work groups and post as a team. *** I realize these questions are extremely difficult - and to t...
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May 2, 2009 - Final Project Outline (optional)

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For those of you interested in working on a final project, the following is an example outline . The final project must be in a "Power...

May 2, 2009 - Homework

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Next week - please read Chapter 9. CORRELATION AND REGRESSION

May 2, 2009 - Summary

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Class Summary: Topics covered continue the previous discussion on hypothesis testing presented in Unit 8 in which we learn to test a claim ...

May 2, 2009 - Class Notes

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A. Testing the Difference Between Means (Large Independent Samples) A null hypothesis, H0, is a statistical hypothesis that usually states t...

May 2, 2009 - HYPOTHESIS TESTING WITH TWO SAMPLES

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Key Objectives for the class: A. Testing the Difference Between Means (Large Independent Samples) a) Defining null and alternative hypothesi...

May 2, 2009 - PowerPoint Notes

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I will be distributing a CD ROM disc with copies of my notes with PowerPoint presentation for final exam/or project study purposes. The Pow...
Friday, April 24, 2009

April 25, 2009 - In-Class Project, "21"

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In class project review, and "21". Think about how you could use statistics in your career, personal life, et al -- we will discus...

April 25, 2009 - Final Exam sample questions to review (do not answer)

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Examples of final exam questions to review: (*** please note, you can answer these questions, for extra credit - in your work groups -- if ...
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April 25, 2009 - Chapter 7 Group Questions, quick multiple choice

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1. A probability distribution curve is always bell-shaped and symmetric about the mean. a) True b) False 2. A z-score indicates a position o...
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April 25, 2009 - Homework, Reading

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Next week, please review Chapter 8, HYPOTHESIS TESTING WITH TWO SAMPLES.

April 25, 2009 - Summary

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In this unit, we introduced to the basic concepts and techniques for hypothesis testing and for identifying type I and type II errors. We le...

April 25, 2009 - Homework I

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Please complete the following questions, in your groups: 1. Section 7.1, Exercise #10, p. 343 2. Section 7.1, Exercise #38, p. 344 3. Sectio...
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April 25, 2009 - Quick T/F in class quiz (in class work groups)

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1. In a hypothesis test, you assume that the alternative hypothesis is true. 2. Statistical hypotheses are statements about the sample. 3. A...
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April 25, 2009 - Class Notes

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A. Introduction to Hypothesis Testing A hypothesis test is a process that uses sample statistics to test a claim about the value of a popula...

April 25, 2009 - Key Concepts

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KEY CONCEPTS A. Introduction to Hypothesis Testing a) Defining hypothesis testing o Null and alternate hypothesis o Type I and type II error...
Tuesday, April 14, 2009

April 18, 2009 - Summary (2nd Half of Class), & Homework Assignment

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SUMMARY In this chapter, we studied inferential statistics, finding a point estimate of the mean and margin of error. We learned to construc...
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April 18, 2009 - Homework, Part II

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Complete the following homework activity and post as a group: From your textbook Elementary Statistics—Picturing the World: 1. Section 6.1, ...
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April 18, 2009 - Quick T/F Group Activity

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In your work groups, complete the following T/F questions and post as a group: 1. The sample mean x is a reliable point estimate of the popu...
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April 18, 2009 - Class Notes (2nd Half of Class)

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“Until now, you have focused on the first branch of statistics—descriptive statistics and probability. You have learned to describe and grap...

April 18, 2009 - CONFIDENCE INTERVALS (Chapter 6)

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KEY CONCEPTS TO REMEMBER: A. Confidence Intervals for the Mean (Large Samples) • Point and interval estimate • Level of confidence • Samplin...
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April 18, 2009 - Unit Summary

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SUMMARY Key Points to remember: • z-score • Area under the standard normal curve • Probabilities for normally distributed variables • Probab...

April 18, 2009 - Homework Assignment 1

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In your class work groups (the groups you have been working in over the last few classes) - complete the following homework assignment and p...
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April 18, 2009 - Class Notes

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Class Lecture Notes for April 18, 2009 (talking points) A. Introduction to Normal Distributions A continuous probability distribution is the...
Saturday, April 11, 2009

April 11, 2009 - Reading Assignment

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Please have read through chapters 5 & 6 by April 18, 2009.

April 11, 2009 - WWW Links

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Links that may be of interest: http://www.bea.gov/ http://www.fedstats.gov/ http://www.commerce.gov/ http://www.census.gov/ http://www.dol.g...
Friday, April 10, 2009

April 11, 2009 - Normal Probability Distributions

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NORMAL PROBABILITY DISTRIBUTIONS KEY CONCEPTS A. Introduction to Normal Probability Distributions a) Continuous probability distribution o N...

April 11, 2009 - Homework, Part II

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Complete the following exercises from your textbook Elementary Statistics—Picturing the World (and post them on the blog): 1. Section 4.1, E...
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April 11, 2009 - Assignment, Homework, The Poll

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Assume the following facts: A political polling organization conducted a survey. As a part of the survey, the organization calls 1,012 peopl...
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April 11, 2009 - Quick "T & F" Quiz

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True or False 1. The expected value of a discrete random variable is equal to the mean of the random variable. 2. Continuous random variable...
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April 11, 2009 - Quick "WWW" excercise

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The following link leads to an animation that performs the parking lot simulation described in the text. Experiment with the animation. http...
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April 11, 2009 - Lecture Notes

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Certain applications, such as those used for weather forecasting and space research, require the collection and analysis of large amounts of...

April 10, 2009 - DISCRETE PROBABILITY DISTRIBUTIONS

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KEY CONCEPTS A. Probability Distributions a) Defining random variable b) Types of random variable o Discrete random variable o Continuous ra...
Saturday, April 4, 2009

April 4, 2009 - Homework Reading

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Please review Chapter 4 for next week.
Friday, April 3, 2009

April 4, 2009 - Homework, Probability

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Complete the following exercises from your textbook Elementary Statistics—Picturing the World: 1. Section 3.1, Exercise #14, p. 125 2. Secti...
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April 4, 2009 - Probability & Cards

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A standard deck of cards contains a total of 52 cards. Each of the four suits—Spade, Heart, Diamond, and Club—contains 13 cards, 10 of them ...

April 4, 2009 - True or False Questions

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True, False, or Subjective Probability 1. There is a 200% chance of thunderstorm tonight. 2. Classical probability of an event is the relati...
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April 4, 2009 - Probability (www) Interactive

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The following link leads to an animation that illustrates the additive and multiplicative laws of probability. The amount of flow through ea...

April 4, 2009 - Class Notes

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A. Basic Concepts of Probability a) Defining probability b) Probability experiment c) Types of probability d) Fundamental concepts related t...
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Saturday, March 28, 2009

March 28, 2009 - Class Notes

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A. Measures of Central Tendency Terms such as “the most common” or “average” used in regular vocabulary refer to the typical or middle value...

March 28, 2009 - Descriptive Statistics (Part II)

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Outline A. Measures of Central Tendency o Mean o Median o Mode B. Measures of Variation o Variance o Standard deviation C. Measures of Posit...

March 28, 2009 - Take Home Quiz Assignment

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You will have 45 minutes in class to complete the following assignment/quiz (11:45 to 12:30). Title: Frequency Distributions and Their Graph...
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