Chapter 7 Written HW

# Chapter 7 Written HW - Print this output and turn it in...

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Name: STATISTICS 101 - Written Homework Chapter 7 Due Friday, September 30 Homework is due on the due date at the end of lecture. Many physical characteristics of people and animals are related. For example, taller people tend to weigh more. Similar associations can also be found in inanimate objects. In this problem, we will be looking at the association between two chemical components of a sample of 29 cigarette brands, nicotine and tar content (in mg). These data can be found in the JMP data ±le cigarette.JMP in the Chapter 7 Learning Module in the Unit 2 folder in WebCT. 1. Describe the Who for this data set. 2. Describe the What for this data set. 3. Use JMP to obtain the scatterplot and the correlation coeﬃcient between the two variables.

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Unformatted text preview: Print this output and turn it in with this assignment. 4. What is the nicotine content of the cigarette brand with the smallest tar content? 5. Two brands tie for the largest tart content, what is the nicotine content of the cigarette brands with the largest tar content? 6. One cigarette brand has a nicotine content of 0.9 mg. What is the tar content of this brand? 1 7. Describe the relationship between the nicotine and tar content of cigarette brands. Make sure to mention form, strength, direction and the presence of any outliers. 8. Give the value of the correlation coeﬃcient r . What does this value mean in terms of the relationship between the nicotine and tar content of cigarette brands? r = Interpretation: 2...
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## This note was uploaded on 09/30/2011 for the course STAT 101 taught by Professor Graham during the Spring '08 term at Iowa State.

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Chapter 7 Written HW - Print this output and turn it in...

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