If a regression line is ŷ = 31.5 + 1.85x. estimate Y for X = 10. – InterviewSolution

1.

If a regression line is ŷ = 31.5 + 1.85x. estimate Y for X = 10.

Answer»

ŷ = 31.5 + 1.85x

Putting x = 10 in ŷ = 31.5 + 1.85 x, we get

ŷ = 31.5 + 1.85 (10)

= 31.5 + 18.5 = 50

Hence, the estimate of Y for X = 10 obtained is 50.

Discussion

No Comment Found

Related InterviewSolutions

Which regression line is used if the sale of a commodity depends on its advertisement cost ?(a) Regression line of advertisement cost on sale(b) Regression line of advertisement cost on advertisement cost(c) Regression line of sales on advertisement cost(d) Regression line of sales on sales
State the Linear Regression model.
Define : Linear Regression
Define Linear Regression .
Equation of regression .
Which of the following indicates the functional relation between the two variables ?(a) Correlation(b) Regression(c) Mean(d) Variance
What are the constants a and b in the regression line ŷ = a + bx ? ,
Will the regression coefficient change if the values of both the variables are doubled with the help of transformation of scale?
If the regression line of Y on X is ŷ = 11 + 3x and Sx: Sy = 3 : 10, find the coefficient of determination.
If a regression line is ŷ = 31.5 + 1.85x. estimate Y for X = 10.