A scientist is studying the relationship between the percentage of a particular

Question

A scientist is studying the relationship between the percentage of a particular type of nutrient in the soil and the eventual height of a plant. The regression equation is: Height = 5.31 + 3.34 x Percentage

S = 0.831613

R-Sq = 0.227 R-Sq (adj) = 0.192

Which of the following is true?

ii. The slope of the regression line is 3.345

iii. The standard error of the slope is 0.3633

(a) i only

(b) ii only

(c) iii only

(d) i and ii only

(e) i and iii only

(f) None of the above

Predictor Coefficient Stand. Dev. t P Constant 5.3083 0.3633 14.61 0.000 Percentage 3.345 1.316 2.54 0.019

Explanation / Answer

which are true?

iii. The standard error of the slope is 0.3633

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