The independent variable is SO-2 deposition rate (mg/m2/day) and the dependent v

ID: 2417367 • Letter: T

Question

The independent variable is SO-2 deposition rate (mg/m2/day) and the dependent variable is steel weight loss (g/m2)

X-values: 23.4 79.1 34.5 56.3 27.4 50.2 45.3 52.1 60.2 29.4

Y-values: 398.2 1081.2 634.6 858.1 418.4 821.3 772.1 820.3 912.5 533.2

a. Calculate the equation of the estimated regression line.

b. What percentange of observed variation in steel weight loss can be attributed to the linear relationship with the variation in deposition rate?

c. What is the probability that, on average, a depostion rate of 35 (mg/m^2 /day) yields a value of steel weight loss between 500 and 575 g/m^2

a.estimated regression line > y= 151.71+12.52x

b. dy = 12.52*dx = 25.04

c. y value when x = 35 is 589.9. so there is no probability.

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