Reference no: EM13582396

Q1. In developing a regression equation from the following data to predict y by x, the slope is:

x y
9 18
8 15
5 7
1 3

a) 1.88, b) 0.44, c) 4.76, d) 0.18

Q2. In developing a regression equation from the following data to predict y by x, the y intercept is:

x     y
11   5
16   8
4     6
2     5
3     4

a) 3.504, b) 4.256, c) 10.550, d) 0.1867

Q3. A simple regression model has been developed using a sample of 11 pairs of observations. The sum of squares of error is 237.64. The standard error of the estimate is:

a) 5.139, b) 4.875, c) 4.648, d) 23.764