Please answer within 30 minutes, and that the answers are correct with the explanation.

QUIZ 10: Tick the correct answer in following:

What is the slope of regression line ofy on x given by 2x -2y + 4 = 0 ?

		1
		-1
		4
		2

A fitted linear regression equation is= 6+x. Ifx =4 and the corresponding observed value ofy= 15, the residual at this observation is:

		5
		-5
		10
		15

A fitted linear regression model is = a-x. If x = 4 and the corresponding predicted value of y = 4, What is the value of a?

		1
		0
		8
		4

What is the value of y for x =-3, if slope of regression line of y on x be 1 and y-intercept is 6?

		6
		3
		9
		-3

Mona rents bicycle to tourists. She recorded the height x (in cm.) of each customer and the frame size y (in cm.) of the bicycle that customer rented.

The relationship between the two variable is. What is the residual of the customer with a height of 155 cm. who rents a bicycle with a 51 cm. frame?

		1
		0
		3
		-1