The following table lists how poverty level income cutoffs (in dollars) for a family of four have

Question:

The following table lists how poverty level income cutoffs (in dollars) for a family of four have changed over time.

Let x represent the year, with x = 0 corresponding to 1980 and y represent the income in thousands of dollars.

a. Plot the data. Do the data appear to lie along a straight line?

b. Calculate the correlation coefficient. Does your result agree with your answer to part a?

c. Find the equation of the least squares line.

d. Use your answer from part c to predict the poverty level in the year 2018.

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Calculus With Applications

ISBN: 9780321831101

10th Edition

Authors: Margaret L Lial, Raymond N Greenwell, Nathan P Ritchey

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Question Posted: Aug 11, 2023 08:10 AM

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The following table lists how poverty level income cutoffs (in dollars) for a family of four have

Question:

Year 1980 1985 1990 1995 2000 2005 2008 Income 8414 10,989 13,359 15,569 17,604 19,961 22,207

Step by Step Answer:

a The data appear to ...View the full answer

Calculus With Applications

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