To investigate the relationship between yield of potatoes, y, and level of fertilizer application, x, a researcher divides a field into eight plots of equal size and applies differing amounts of fertilizer to each. The yield of potatoes (in pounds) and the fertilizer application (in pounds) are recorded for each plot. The data are as follows: x |1 1.5 2 2.5 3 3.5 4 4.5 25 31 27 28 36 35 32 34 Construct a scattergram for the data. What does the scattergram suggest about the relationship between x and y? a. b. C. Find the least squares estimates of Bo and B1. d. Plot the least squares line on your scattergram. Does the line appear to fit the data well?
To investigate the relationship between yield of potatoes, y, and level of fertilizer application, x, a researcher divides a field into eight plots of equal size and applies differing amounts of fertilizer to each. The yield of potatoes (in pounds) and the fertilizer application (in pounds) are recorded for each plot. The data are as follows: x |1 1.5 2 2.5 3 3.5 4 4.5 25 31 27 28 36 35 32 34 Construct a scattergram for the data. What does the scattergram suggest about the relationship between x and y? a. b. C. Find the least squares estimates of Bo and B1. d. Plot the least squares line on your scattergram. Does the line appear to fit the data well?
Chapter3: Polynomial Functions
Section3.5: Mathematical Modeling And Variation
Problem 1ECP: The ordered pairs below give the median sales prices y (in thousands of dollars) of new homes sold...
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