Two lawn care stores rent out kits to test lawn soil for ideal conditions. A consumer study was performed to assess the accuracy of these test kits. Several features commonly assessed in soil sampling were performed with both tests at varying depths. The results from each kit were compared to the results obtained using certified laboratory equipment, which provides extremely accurate estimates. The results are summarized in the table below.
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Question 1 of 5
1. Question
Question 1:
Based on Table 1, which component of surface soil is most accurately measured by Store A, relative to the laboratory results?
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Question 2 of 5
2. Question
Question 2:
The data from which of the testing procedures supports the conclusion that the concentration of phosphorus increases as the depth of the soil tested increases?
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Question 3 of 5
3. Question
Question 3:
Is the conclusion that Store A is more accurate at measuring ammonia concentration than Store B supported by the data in Table 1?
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Question 4 of 5
4. Question
Question 4:
Soil was sampled from an unknown depth and tested by Store A. The concentrations of the soil compounds tested were as follows: Nitrogen = 5.1; Carbon = 24.8; Ammonia = 0.63. According to the data in the table, one would predict that the soil was most likely sampled from a depth of
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Question 5 of 5
5. Question
Question 5:
Which of the following graphs best represents the relationship between the depth of soil and the concentration of carbon, as measured by Store A?
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