stat353-samplemidterm.pdf - STAT353 \u2013 SAMPLE MIDTERM TO BE ANSWERED ON THE EXAM Instructor:Dr L Cowen Duration 50 minutes THIS EXAM HAS 8 PAGES PLEASE

stat353-samplemidterm.pdf - STAT353 u2013 SAMPLE MIDTERM...

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STAT353 – SAMPLE MIDTERM TO BE ANSWERED ON THE EXAM Duration: 50 minutes Instructor: Dr. L. Cowen THIS EXAM HAS 8 PAGES. PLEASE RETURN THE TABLES UNMARKED. PART A - DO ALL OF THESE QUESTIONS:Consider an experiment where 25 brands of cigarettes were measured for their weight(g), tar (mg), nicotine (mg), and carbon monoxide (CO) content (% saturation). Carbonmonoxide (CO) binds with red blood cells, replacing oxygen in the blood. Smoking specialistshave speculated that the CO gas might exacerbate heart and lung disorders, contribute tohardening of the arteries and slow fetal development in pregnant women who smoke. Thus,you want to determine if there is an empirical relationship between the carbon monoxidecontent and weight, tar, and nicotine content.1. Comment on the graphs in Figure 1. [3] CO 0 5 15 25 0.8 0.9 1.0 1.1 5 10 15 20 0 5 15 25 Tar

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