Hello,

Correlation is used to discover relationships between variables. Evaluate the

correlation

between the variables in DATA. What is the correlation?

variable1 -1.60263 5.13511 6.36533 5.62218 -2.19935 6.44037 7.53576 6.84911 -0.96507 -7.97987 7.71148 8.00414 -1.84249 -6.64529 3.52281 6.12823 -8.02429 1.93739 1.60250 9.59542 0.97873 7.61991 6.35683 4.60624

variable2 6.66630 22.39796 48.04439 33.73949 13.13368 34.07411 57.43268 46.18391 2.31758 66.45126 60.12220 69.34776 -8.58487 35.44469 15.81326 42.51683 63.53322 10.39306 -1.67370 92.44574 -2.22144 66.59948 35.62167 15.37388

a) 0.984 (Is this correct?)

b) -0,991

c) -0.008

d) 0.310

e) None of the answers are correct

25) Animportant application for regression in manufacturing is the estimation of cost of production.Based on DATA from Ajax Widgets relating cost (y) to volume (x), what is the cost per widget?

Production Volume (units) 400 450 550 600 700 750 425 475 575 625 725 775

Total Cost ($) 5424 5657 5759 7294 7583 8603 5311 6093 6662 7380 7784 8588

8.21

8.75

7.38-This is the answer I came up with

None

7.54

27)Animportant application for regression in manufacturing is the estimation of cost of production.Based on DATA from Ajax Widgets relating cost (y) to volume (x), what is the cost of producing 600 widgets

Production Volume (units) 400 450 550 600 700 750 425 475 575 625 725 775

Total Cost ($) 3430 4080 4878 4884 5913 6402 4273 4362 5089 5446 6017 6591

None

6312

5206-This is the answer I came up with

6954

5862