Question

Data were collected on the age (in years) and price (in thousands of dollars) of a random sample of 25 used Honda Civic. A
scatterplot of the data (with regression line) and computer output from a regression analysis are provided:
Pearson correlation of the age (in years) and price (in thousands of dollars) = ?
P-Value =?
The regression equation is Price = 15.3 - 1.71 Age
Predictor Coef SE Coef T P
Constant 15.2912 0.5840
Age -1.7126 0.1264

S = 1.37179 R-Sq = 88.9% R-Sq(adj) = 88.4%

What is the R 2 for this mode?

Group of answer choices

26.18%

58.40%

94.3%

88.9%

Answer 1

From output R-square is 88.9% or 0.889. Since slope is negative so correlation coefficient will also negative. Pearson correlation of the age (in years) and price (in thousands of dollars) is

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The R -square is