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The table shows (lifetime) peptic ulcer rates (per 100 population) for various family incomes as reported by the National Health Interview Survey.
Income | Ulcer rate (per 100 population) |
$4, 000 $6, 000 $8, 000 $12, 000 $16, 000 $20, 000 $30, 000 $45, 000 $60, 000 |
14.1 13.0 13.4 12.5 12.0 12.4 10.5 9.4 8.2 |
(a) Make a
(b) Find and graph a linear model using the first and last data points.
(c) Find and graph the least squares regression line.
(d) Use the linear model in part (c) to estimate the ulcer rate for an income of $25, 000.
(e) According to the model, how likely is someone with an income of $80, 000 to suffer from peptic ulcers?
(f) Do you think it would be reasonable to apply the model to someone with an income of $200, 000?
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Chapter 1 Solutions
Bundle: Calculus, 8th + Enhanced WebAssign - Start Smart Guide for Students + WebAssign Printed Access Card for Stewart's Calculus, 8th Edition, Multi-Term
- Calculus For The Life SciencesCalculusISBN:9780321964038Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.Publisher:Pearson Addison Wesley,Glencoe Algebra 1, Student Edition, 9780079039897...AlgebraISBN:9780079039897Author:CarterPublisher:McGraw HillBig Ideas Math A Bridge To Success Algebra 1: Stu...AlgebraISBN:9781680331141Author:HOUGHTON MIFFLIN HARCOURTPublisher:Houghton Mifflin Harcourt
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