Southern Illinois University Economics Discussion


A recent advertisement for “the fat burning pill”, Lipozene, claims that people who have taken the pill have lost over 400% more weight. According to the ad, the claim was based on a clinical study consisting of two groups: the active group and the placebo group. They said that “during 60 clinical trials, the active group lost 2.75 lbs and the placebo group gained 2.18 lbs”.Explain whether in your judgment, the statistics presented in this ad is meaningful, incomplete, misleading, or difficult to interpret meaningfully. Justify your statements by reasoning.Suppose that you belong to a consumer group and you wish to test the claim of Lipozene’s manufacturer. Describe which of the following sampling methods you would use in your study.random samplingsystematic samplingstratified samplingcluster samplingInclude rationales for your choice of the sampling method.In your two replies to classmates, use reasoning to agree or to disagree with their responses to the two questions above. Provide insights for ways to verify that their choices are appropriate.You can review sampling methods in Chapter 1 of Bluman.

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Introduction to Probability and Statistics
Learning Module 1
Read: Bluman 10th edition, Chapter 5 The Probability Distribution
Chapter 6 The Normal Distribution
M: Set 1 Bluman Exercise 5-1 1, 7, 15, 23, 25
T: Set 2 Bluman Exercise 5-2 1, 3, 10, 14, 2
W: Set 3 Bluman Exercise 5-3 1, 6, 7, 9, 14
Th: Set 4 Bluman Exercise 5-4 6, 10, 13, 15
M: Set 1 Bluman Exercise 6-1 4, 7, 35, 41, 47a,b,c
T: Set 2 Bluman Exercise 6-2 1, 3, 17, 24, 42
W: Set 3 Bluman Exercise 6-3 8, 12, 20, 24, 25,
Th: Set 4 Bluman Exercise 6-4 1, 3, 12, 20, 22
BLUMAN QUIZZES: Complete 8 Bluman 5 question quizzes by Sunday Evening of
Week 1. They are found in the left nav bar under Quizzes-Exams
Kabacoff: Review and Refresh your understanding of Chapter 1.
Exam prep: Understand and be able to answer test questions on the R syntax needed
to produce the 3 listings (1:1, 1:2, 1:3) found in Kabacoff 2nd edition. Create these
3 R projects and place them in an R portfolio folder with all the R projects you
develop in 6010. Create and add the 3 project names to a directory listing of the R
projects in your portfolio. Your portfolio and/or directory is subject to faculty review
one or more times during the course. Faculty review and assessment of your project
portfolio will count 20% of your final grade in the course. Your R quiz will include
questions only from the content in Chapter 1.
R QUIZ: Complete 5 Question M1 R quiz by Sunday Evening of Module 1. The quiz
is auto graded and is found in the left nav bar under Quizzes and Exams.

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Explanation & Answer:
150 words

random sampling

Stratified Sampling

Cluster sampling

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