4
QuizMultiple Choice

R-squared and s — Unit test

Question 4 • DRHS GA-Statistical Reasoning

Market researchers were interested in the relationship between the number of pieces in a building-brick set and the cost of the set. The researchers collected information from a survey and used it to obtain the regression equation ŷ = 0.08x + 1.20, where x represents the number of pieces in a set and ŷ is the predicted price (in dollars) of the set. What is the predicted price of a set that has 2,520 pieces?

Answer
A
$202.80
B
$2,017.20
C
$3,024.08
D
$31,485
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