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(Steps Shown) Lake Michigan water level records have been kept for many years, showing an overall loss of water over time. The chart below shows depths for

Question: Lake Michigan water level records have been kept for many years, showing an overall loss of water over time. The chart below shows depths for various years.

Year Lake Michigan water level (feet)
1860 581.9
1900 579.6
1950 578.4
2000 576.8

Source: National Oceanic and Atmospheric Administration

  1. Working by hand, find a linear equation that is a reasonable linear model that represents the water level (in feet) t years past 1800. Use the model to predict the water level in 2050.
  2. Use linear regression on your calculator to find the best fit linear model for the water level (in feet) t years since 1800. Use the model to predict the water level in 2050.

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Solution: The downloadable solution consists of 2 pages
Deliverable: Word Document


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