A manufacturer wants to minimize the cost of producing a new item. This new item is similar to an old item, and the company thinks costs for both items will be minimized for the same number of items produced. The company uses polynomial regression and finds the function Cx) - 0.09x - 1.78x + 11.03 fits the data well (with 2 - 0.96), where Cis the cost per item to produce x items (in hundreds). The company concludes that producing about 1,000 items would minimize the cost per item. Is this a valid conclusion and why? O Yes, this is a valid conclusion because the graph is concave up and clearly has a minimum. O Yes, this is a valid conclusion because x= 10 is close to the other data values, the data points are all close to the curve, and the value is close to 1. O No, this is not a valid conclusion because there are not data values close enough to x = 10. O No, this is not a valid conclusion because the correlation coefficient is too close to 1.

Algebra and Trigonometry (6th Edition)
6th Edition
ISBN:9780134463216
Author:Robert F. Blitzer
Publisher:Robert F. Blitzer
ChapterP: Prerequisites: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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A manufacturer wants to minimize the cost of producing a new item. This new item is similar to an old item, and the company thinks costs for both items will be minimized for the same number of items produced. The company uses polynomial regression and finds the function C(x) = 0.09x – 1.78x + 11.03 fits the
-
data well (with 7 = 0.96), where C is the cost per item to produce x items (in hundreds). The company concludes that producing about 1,000 items would minimize the cost per item.
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14
12
10-
8-
6
2
-4
-2
6
8
10
12
14
16
18
20
22
Is this a valid conclusion and why?
Yes, this is a valid conclusion because the graph is concave up and clearly has a minimum.
Yes, this is a valid conclusion because x = 10 is close to the other data values, the data points are all close to the curve, and the ? value is close to 1.
No, this is not a valid conclusion because there are not data values close enough to x = 10.
O No, this is not a valid conclusion because the correlation coefficient is too close to 1.
Transcribed Image Text:A manufacturer wants to minimize the cost of producing a new item. This new item is similar to an old item, and the company thinks costs for both items will be minimized for the same number of items produced. The company uses polynomial regression and finds the function C(x) = 0.09x – 1.78x + 11.03 fits the - data well (with 7 = 0.96), where C is the cost per item to produce x items (in hundreds). The company concludes that producing about 1,000 items would minimize the cost per item. %3D 14 12 10- 8- 6 2 -4 -2 6 8 10 12 14 16 18 20 22 Is this a valid conclusion and why? Yes, this is a valid conclusion because the graph is concave up and clearly has a minimum. Yes, this is a valid conclusion because x = 10 is close to the other data values, the data points are all close to the curve, and the ? value is close to 1. No, this is not a valid conclusion because there are not data values close enough to x = 10. O No, this is not a valid conclusion because the correlation coefficient is too close to 1.
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