Problem 2: In the Agricultural science department at the university of Illinois has a group of researcher who developed the FACE system. It realeases carbon dioxide in the atmosphere of a fleld to simulate atmospheric concentration of CO2 different from the current conditions. A study was designed to study the susceptibility of Christmas trees to disease depending on the CO2 concentration in the atmosphere. 3 atmospheric concentration where chosen: Normal [400 ppm (levels in 2012 when the study was ran) ] elevated [430 ppm (low estimate from 2012 for 2040)] and high [500ppm (business as usual estimate for 2040)]. (note: numbers are estimated from a NOAA graph - may not be accurate). About a 110 christmass trees were planted in the different conditions - some trees dies within the few weeks after being planted, and where removed from the study as most likely the reason for the tree's death was human error while planting the trees). The health status of each tree was recoded at the end of the growth season, and the summary table below shows count of sick tree/healthy trees. Condition Normal Elevated High Heathy tree 7 15 47 92 88 67 Sick tree count After explaining which test you will use, giving parameters, hypotheses and so on, tell us if the projected future CO2 conditions have an effect on tree's heath.

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Problem 2: In the Agricultural science department at the university of Illinois has a group of researcher who developed the FACE
system. It realeases carbon dioxide in the atmosphere of a field to simulate atmospheric concentration of C02 different from the
current conditions. A study was designed to study the susceptibility of Christmas trees to disease depending on the CO2 concentration
in the atmosphere. 3 atmospheric concentration where chosen: Normal [400 ppm (levels in 2012 when the study was ran) ] elevated
[430 ppm (low estimate from 2012 for 2040)] and high [500ppm (business as usual estimate for 2040)]. (note: numbers are estimated
from a NOAA graph - may not be accurate). About a 110 christmass trees were planted in the different conditions - some trees dies
within the few weeks after being planted, and where removed from the study as most likely the reason for the tree's death was human
error while planting the trees). The health status of each tree was recoded at the end of the growth season, and the summary table
below shows count of sick tree/healthy trees.
Condition
Normal
Elevated
High
7
15
47
Heathy tree
88
67
Sick tree count
92
After explaining which test you will use, giving parameters, hypotheses and so on, tell us if the projected future CO2 conditions have an
effect on tree's heath.
Transcribed Image Text:Problem 2: In the Agricultural science department at the university of Illinois has a group of researcher who developed the FACE system. It realeases carbon dioxide in the atmosphere of a field to simulate atmospheric concentration of C02 different from the current conditions. A study was designed to study the susceptibility of Christmas trees to disease depending on the CO2 concentration in the atmosphere. 3 atmospheric concentration where chosen: Normal [400 ppm (levels in 2012 when the study was ran) ] elevated [430 ppm (low estimate from 2012 for 2040)] and high [500ppm (business as usual estimate for 2040)]. (note: numbers are estimated from a NOAA graph - may not be accurate). About a 110 christmass trees were planted in the different conditions - some trees dies within the few weeks after being planted, and where removed from the study as most likely the reason for the tree's death was human error while planting the trees). The health status of each tree was recoded at the end of the growth season, and the summary table below shows count of sick tree/healthy trees. Condition Normal Elevated High 7 15 47 Heathy tree 88 67 Sick tree count 92 After explaining which test you will use, giving parameters, hypotheses and so on, tell us if the projected future CO2 conditions have an effect on tree's heath.
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