a-researcher-studying-the-relationship-between-hours-spent-practicing-piano-and-

Question

A researcher studying the relationship between hours spent practicing piano and performance score on a music exam found the regression line y^=8.25x+62.5\hat{y}=8.25x+62.5. Predict the performance score for a student who practiced for 33 hours.

Accepted Answer

87.2587.25

Answer

86.2586.25

Answer

81.2581.25

Answer

62.5062.50

A researcher studying the relationship between hours spent practicing piano and performance score on a music exam found the regression line y^=8.25x+62.5\(\hat{y}\)=8.25x+62.5. Predict the performance score for a student who practiced for 33 hours.

A researcher studying the relationship between hours spent practicing piano and performance score on a music exam found the regression line $\hat{y} = 8.25 x + 62.5$ . Predict the performance score for a student who practiced for $3$ hours.