Please be careful with the rounding and use all the decimal places when needed

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

Size (ounces) Cost ($)

16 3.89

32 4.89

64 5.69

200 10.69

part a

Calculate the least squares line. Put the equation in the form of:=a+bx.

(Round your answers to three decimal places.)

=_____+______x

part b

Find the correlation coefficientr. (Round your answer to four decimal places.)

r=

Is it significant?

a) Yes

b) No

part c

If the laundry detergent were sold in a50-ounce size, find the estimated cost. (Use your equation from part (c). Round your answer to two decimal places.)

$_______

part d

If the laundry detergent were sold in an80-ounce size, find the estimated cost. (Use your equation from part (c). Round your answer to two decimal places.)

$________

part e

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.) (_/_) indicates to chose which option best fits

As the(number of ounces/cost)of liquid laundry detergent increases by one unit, the detergent(cost/size)increases by__________(dollars/ounces)

.