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 yiel of potatoes (in pounds) and the fertilizer application (in pounds) are recorded for each plot. The data are as follows: 1 y 25 31 27 28 36 35 32 34 1.5 2.5 3 3.5 4 4.5 Summary statistics yield SSx = 10.5, sSyy= 112, SSxy = 25, and SSE = 52.476. Calculate the coefficient of correlation and comment if correlation is strong(weak), positive ((negative)

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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:
1
1.5
2.
2.5
3
3.5
4
4.5
| 25
31 27 28 36 35 32 34
Summary statistics yield SSy = 10.5, SSy= 112, SSxy = 25, and SSE = 52.476. Calculate the coefficient of correlation and comment if correlation is strong(weak), positive (negative)
Transcribed Image Text: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: 1 1.5 2. 2.5 3 3.5 4 4.5 | 25 31 27 28 36 35 32 34 Summary statistics yield SSy = 10.5, SSy= 112, SSxy = 25, and SSE = 52.476. Calculate the coefficient of correlation and comment if correlation is strong(weak), positive (negative)
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