Question

The data show the chest size and weight of several bears. Find the regression​ equation, letting chest size be the independent​ (x) variable. Then find the best predicted weight of a bear with a chest size of 51 inches. Is the result close to the actual weight of 342 ​pounds? Use a significance level of 0.05.

Chest size​ (inches)	45	50	43	43	52	52
Weight​ (pounds)	352	374	275	314	440	367

What is the regression equation? y=___+___x (round to one decimal place as needed) What is the best predicted weight of a bear with a chest size of 39 inches? y=____lbs (Round to one decimal place as needed.)

Is the result close to the actual weight of 342 pounds?

A. This result is very close to the actual weight of the bear?

B. This result is close to the actual weight of the bear?

C. This result is exactly the same as the actual weight of the bear?

D. This result is not very close to the actual weight of the bear?

Answer 1

let X denotes chest size and y denotes weight

now for chest size of 39 inches, i.e. x= 39

y= -6772 approx , here negative sign indicates reduction in weight.

this result is not very close.

please like ??