Question

The cost of a leading liquid laundry detergent in different sizes is given below.

Size (ounces)	Cost ($)
16	3.89
32	4.79
64	5.69
200	10.59

c) Calculate the least squares line. Put the equation in the form of: ŷ = a + bx. (Round your answers to three decimal places.)

ŷ =_____+_____x

d) Find the correlation coefficient r. (Round your answer to four decimal places.)

r = _____

e) If the laundry detergent were sold in a 50-ounce size, find the estimated cost. (Use your equation from part (c). Round your answer to two decimal places.)

$ _____

If the laundry detergent were sold in an 90-ounce size, find the estimated cost. (Use your equation from part (c). Round your answer to two decimal places.)

$ _____

j) What is the slope of the least squares (best-fit) line? (Round your answer to three decimal places.)

Interpret the slope. (Round your answer to three decimal places.)

As the ____ of liquid laundry detergent increases by one unit, the detergent ____ increases by ____ .

Answer 1