For the X,Y data below, compute:

X	Y
2	5
4	6
4	7
5	11
6	12

(a) the correlation coefficient and determine if it is significantly different from zero.

(b) find the regression line.

c) interpret the coefficient of the regression line

d) at 5% test if the Y is related to X

e) find the coefficient of determination and interpret this coefficient.

f) predict the value of average Y if the average of X is13

g) at 1% find the confidence interval and the prediction interval of the true value of average and the value of Y.

Solutions

Expert Solution

orchestra answered 1 year ago

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