Automobile racing, high-performance driving schools, and driver education programs run by automobile clubs continue to grow in popularity. All these activities require the participant to wear a helmet that is certified by the Snell Memorial Foundation, a not-for-profit organization dedicated to research, education, testing, and development of helmet safety standards. Snell “SA” (Sports Application) rated professional helmets are designed for auto racing and provide extreme impact resistance and high fire protection. One of the key factors in selecting a helmet is weight, since lower weight helmets tend to place less stress on the neck. The following data show the weight and price for 18 SA helmets (SoloRacer website). Helmet Weight (oz) Price ($) Pyrotect Pro Airflow 64 239 Pyrotect Pro Airflow Graphics 64 277 RCi Full Face 64 201 RaceQuip RidgeLine 64 203 HJC AR-10 58 291 HJC Si-12 47 699 HJC HX-10 49 890 Impact Racing Super Sport 59 346 Zamp FSA-1 66 202 Zamp RZ-2 58 289 Zamp RZ-2 Ferrari 58 292 Zamp RZ-3 Sport 52 482 Zamp RZ-3 Sport Painted 52 483 Bell M2 63 368 Bell M4 62 363 Bell M4 Pro 54 564 G Force Pro Force 1 63 244 G Force Pro Force 1 Grafx 63 286 -select your answer choices- a. (A, B, C, D) b. Does there appear to be any relationship between these two variables? There appears to be a (negative, positive) linear relationship between the two variables. The heavier helmets tend to be (more, less) expensive d. Test for the significance of the relationship at the 0.05 level of significance. p-value corresponding to F-test is lower than 0.01 between 0.01 and 0.025 between 0.025 and 0.05 between 0.05 and 0.10 greater than 0.10 p-value corresponding to t-test on B1 (coefficient of Weight) is lower than 0.01 between 0.01 and 0.025 between 0.025 and 0.05 between 0.05 and 0.10 greater than 0.10 There (is, is no) evidence of a significant relationship. e. Did the estimated regression equation provide a good fit? Explain. Hint: If r^2 is greater than 0.70, the estimated regression equation provides a good fit. r^2 is (to 3 decimals), the estimated regression equation (provided, did not provide) a good fit.

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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Automobile racing, high-performance driving schools, and driver education programs run by automobile clubs continue to grow in popularity. All these activities require the participant to wear a helmet that is certified by the Snell Memorial Foundation, a not-for-profit organization dedicated to research, education, testing, and development of helmet safety standards. Snell “SA” (Sports Application) rated professional helmets are designed for auto racing and provide extreme impact resistance and high fire protection. One of the key factors in selecting a helmet is weight, since lower weight helmets tend to place less stress on the neck. The following data show the weight and price for 18 SA helmets (SoloRacer website).

Helmet Weight (oz) Price ($)
Pyrotect Pro Airflow 64 239
Pyrotect Pro Airflow Graphics 64 277
RCi Full Face 64 201
RaceQuip RidgeLine 64 203
HJC AR-10 58 291
HJC Si-12 47 699
HJC HX-10 49 890
Impact Racing Super Sport 59 346
Zamp FSA-1 66 202
Zamp RZ-2 58 289
Zamp RZ-2 Ferrari 58 292
Zamp RZ-3 Sport 52 482
Zamp RZ-3 Sport Painted 52 483
Bell M2 63 368
Bell M4 62 363
Bell M4 Pro 54 564
G Force Pro Force 1 63 244
G Force Pro Force 1 Grafx 63 286

-select your answer choices- 

a. (A, B, C, D)

b. Does there appear to be any relationship between these two variables?

There appears to be a (negative, positive) linear relationship between the two variables. The heavier helmets tend to be (more, less) expensive

d. Test for the significance of the relationship at the 0.05 level of significance.

p-value corresponding to F-test is 

lower than 0.01

between 0.01 and 0.025

between 0.025 and 0.05

between 0.05 and 0.10 

greater than 0.10

p-value corresponding to t-test on B1 (coefficient of Weight) is

lower than 0.01

between 0.01 and 0.025

between 0.025 and 0.05

between 0.05 and 0.10 

greater than 0.10

There (is, is no) evidence of a significant relationship.

e. Did the estimated regression equation provide a good fit? Explain. Hint: If r^2 is greater than 0.70, the estimated regression equation provides a good fit.

r^2 is  (to 3 decimals), the estimated regression equation (provided, did not provide) a good fit.

b. Does there appear to be any relationship between these two variables?
There appears to be a
Select your answer - v linear relationship between the two variables. The heavier helmets tend to be - Select your answer - v
expensive.
c. Develop the estimated regression equation that could be used to predict the price given the weight (to 2 decimals). Enter negative values as negative numbers.
Price =
+
Weight
d. Test for the significance of the relationship at the 0.05 level of significance.
p-value corresponding to F test is
Select your answer
p-value corresponding to t test on B1 (coefficient of Weight) is - select your answer -
There
Select your answer -
v evidence of a significant relationship.
e. Did the estimated regression equation provide a good fit? Explain. Hint: If r is greater than 0.70, the estimated regression equation provides a good fit.
p2
is
(to 3 decimals), the estimated regression equation
Select your answer
va good fit.
Transcribed Image Text:b. Does there appear to be any relationship between these two variables? There appears to be a Select your answer - v linear relationship between the two variables. The heavier helmets tend to be - Select your answer - v expensive. c. Develop the estimated regression equation that could be used to predict the price given the weight (to 2 decimals). Enter negative values as negative numbers. Price = + Weight d. Test for the significance of the relationship at the 0.05 level of significance. p-value corresponding to F test is Select your answer p-value corresponding to t test on B1 (coefficient of Weight) is - select your answer - There Select your answer - v evidence of a significant relationship. e. Did the estimated regression equation provide a good fit? Explain. Hint: If r is greater than 0.70, the estimated regression equation provides a good fit. p2 is (to 3 decimals), the estimated regression equation Select your answer va good fit.
Automobile racing, high-performance driving schools, and driver education programs run by automobile clubs continue to grow in popularity. All these activities require the participant to wear a helmet that is certified by the Snell Memorial
Foundation, a not-for-profit organization dedicated to research, education, testing, and development of helmet safety standards. Snell "SA" (Sports Application) rated professional helmets are designed for auto racing and provide extreme
impact resistance and high fire protection. One of the key factors in selecting a helmet is weight, since lower weight helmets tend to place less stress on the neck. The following data show the weight and price for 18 SA helmets (SoloRacer
website).
Helmet
Weight (oz)
Price ($)
Pyrotect Pro Airflow
64
239
Pyrotect Pro Airflow Graphics
RCi Full Face
64
277
64
201
RaceQuip RidgeLine
64
203
HJC AR-10
58
291
HJC Si-12
47
699
HJC HX-10
49
890
Impact Racing Super Sport
59
346
Zamp FSA-1
66
202
Zamp RZ-2
58
289
Zamp RZ-2 Ferrari
58
292
Zamp RZ-3 Sport
52
482
Zamp RZ-3 Sport Painted
52
483
Bell M2
63
368
Bell M4
62
363
Bell M4 Pro
54
564
G Force Pro Force 1
63
244
G Force Pro Force 1 Grafx
63
286
a. Choose the correct scatter diagram with weight as the independent variable.
A.
[Price ($)
1 200
1100
1000
900
800
700
00에
500
400
300
200
100
45
50
55
Weight (oz)
60
65
В.
[Price ($)
1200
1100
1000
900
800
700
00에
500
400
300
200
100
45
50
55
Weight (oz)
60
65
C.
[Price ($)
1200
1100
1000
900
800
700
600
500
400
300
200
그00
45
50
55
Weight (oz)
60
65
D.
[Price ($)
1 200
1100
1000
900
800
700
600
500
400
300
200
00더
45
50
55
60
65
Weight (oz)
The correct scatter diagram is
Select your answer - v
Transcribed Image Text:Automobile racing, high-performance driving schools, and driver education programs run by automobile clubs continue to grow in popularity. All these activities require the participant to wear a helmet that is certified by the Snell Memorial Foundation, a not-for-profit organization dedicated to research, education, testing, and development of helmet safety standards. Snell "SA" (Sports Application) rated professional helmets are designed for auto racing and provide extreme impact resistance and high fire protection. One of the key factors in selecting a helmet is weight, since lower weight helmets tend to place less stress on the neck. The following data show the weight and price for 18 SA helmets (SoloRacer website). Helmet Weight (oz) Price ($) Pyrotect Pro Airflow 64 239 Pyrotect Pro Airflow Graphics RCi Full Face 64 277 64 201 RaceQuip RidgeLine 64 203 HJC AR-10 58 291 HJC Si-12 47 699 HJC HX-10 49 890 Impact Racing Super Sport 59 346 Zamp FSA-1 66 202 Zamp RZ-2 58 289 Zamp RZ-2 Ferrari 58 292 Zamp RZ-3 Sport 52 482 Zamp RZ-3 Sport Painted 52 483 Bell M2 63 368 Bell M4 62 363 Bell M4 Pro 54 564 G Force Pro Force 1 63 244 G Force Pro Force 1 Grafx 63 286 a. Choose the correct scatter diagram with weight as the independent variable. A. [Price ($) 1 200 1100 1000 900 800 700 00에 500 400 300 200 100 45 50 55 Weight (oz) 60 65 В. [Price ($) 1200 1100 1000 900 800 700 00에 500 400 300 200 100 45 50 55 Weight (oz) 60 65 C. [Price ($) 1200 1100 1000 900 800 700 600 500 400 300 200 그00 45 50 55 Weight (oz) 60 65 D. [Price ($) 1 200 1100 1000 900 800 700 600 500 400 300 200 00더 45 50 55 60 65 Weight (oz) The correct scatter diagram is Select your answer - v
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