Exam 3: Regression and Hypothesis Testing

Arithmetic mean of the two regression coefficients is:

An alternative hypothesis is denoted by...........................

Testing of hypothesis and ......................are the two branches of statistical inference.

The idea of testing of hypothesis was first set forth by ..........................

The property that both the regression coefficients and correlation coefficient have same signs is called................................

The G M of two regression coefficients byx and bxy is equal to ..........................

By testing of hypothesis, we mean:

If the correlation coefficient between two variables, X and Y, is negative, then the regression coefficient of Y on X is.............................

A wrong decision about null hypothesis leads to:

The regression coefficient and correlation coefficient of the two variables will be the same if their .............................are same.

If one regression coefficient is negative, the other is ...............................

......................... is the original hypothesis

Whether a test is one sided or two sided, depends on........................

The property that byx > 1 implies that bxy < 1 is known as .....................

If byx > 1, then bxy is:

A null hypothesis is denoted by...........................

If X and Y are independent, the value of byx is equal to ........................

bxy is the regression coefficient of the regression equation.....................

If r = 1, the angle between the two regression lines is.........................

If X and Y are independent, the property byx = bxy = 0 is called ...................