A summary of total charges from a small cafs natural gas bills is provided below:

Month	kJ	Cost
October	15	$186
November	17	187
December	29	233
January	35	260
February	36	276
March	20	203

Using regression analysis, the expected cost at 40 kJ would be

Question 5Answer

a.

$164

b.

$284

c.

$197

d.

$562