CHALLENGE


There are sample data about the depth of plowing the fields for winter crops (X, cm) and yield (Y. n \\ n):


X 10 15 20 25 30

Y May 10 16 20 24


For a = 0.05 to establish the significance of the statistical relationship between the signs of X and Y.

If symptoms are correlated, build the regression equation, and explain its meaning.

Make a forecast yield of wheat in the plowing depth of 22 cm.

CHALLENGE


There are sample data about the depth of plowing the fields for winter crops (X, cm) and yield (Y. n \\ n):


X 10 15 20 25 30

Y May 10 16 20 24


For a = 0.05 to establish the significance of the statistical relationship between the signs of X and Y.

If symptoms are correlated, build the regression equation, and explain its meaning.

Make a forecast yield of wheat in the plowing depth of 22 cm.