Mathematics, 15.04.2020 22:23 tayjay95
In a study of crop losses due to air pollution, thirty separate plots of peach trees were grown in open-top field chambers and were fumigated with varying concentrations of sulfur dioxide. After one month, the plants were harvested and the total yield of peaches was recorded for each chamber. Researchers wanted to see if sulfur dioxide concentration impacted crop yield. They calculated the following descriptive statistics:
SO2 Conc. (ppm)Crop yield (kg) Mean St. Dev. 0.32 0.14 2.78 0.91 =-0.58
a. What is the linear regression equation that predicts crop yield based on SO2 concentration? (1pt)
b. Interpret the values of the slope and intercept, in the context of the problem. (Ipt)
c. what yield would you predict for a plot of peaches with 0.4 ppm SO2? /Q5DU
d. Is there a significant linear relationship between SO2 concentration and crop yield? Carry out the appropriate test and include all steps for full credit. Given: SEb, -0.85 (1.5pt)
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In a study of crop losses due to air pollution, thirty separate plots of peach trees were grown in o...
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