Problem #1: The relationship between time to fracture of steel and the stress applied to steel was of interest in an experiment. Suppose we have data from such an experiment involving steel. i 1 2 3 4 56 7 8 9 stress 3.2 6.1 9 9.9 14.1 24.6 25.8 26.5 30.1 time 48.3 51.6 42 38.2 31.8 24.5 24.9 24.1 18.3 (a) Which variable is the explanatory variable? (A) stress (B) none of these (C) time Problem #1(a): Select ☑↑ Part (a) choices. (b) Which variable is the response variable? (A) time (B) none of these (C) stress Problem #1(b): Select ↑ Part (b) choices. (c) Determine the least squares regression line. Enter the values of bo and b₁ (in that order) into the answer box below, separated with a comma. Problem #1(c): numbers correct to 4 decimals

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