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Spose yeu are interested in buyinga new ncn Naviganer or Ton Car arestanding on the sales lking ata modelwth eferent optons. The st prceson the vehide. Asaslesperson aereches, yeu onder what the dealer invece prce for his medelwh soens. The fowing deta are besed on arndem selection of these cars of eferent modes and ogtens Let y be the dealer vce n theusands of dolars) ferthe iven vehie T MI 4 () verty that 19, I17, -7700.2, -6s36, Ey70, andrs64. 0Useasoevelof sgnticance te test the dam het . use 2decmal paces) ercl Conclusion Reject the uhypethess, theressucent evidence that ORetect the uhpothess, there cent evidnce thate O fetereject the ypethes, thereis ucet evidence that OFal to reject the uypothess, there cent evidence that ()venty that s,L .,nd O7 (0 Find the predcted dealer invcewhen the st prceis housand dars. e 2 deoma places) () Finda contidence interval for yhen cthousand dollars. ue 2 decmal place) lewer 3Uea soevelof significance to test the caim that>0. Use 2decimal paces) er Conclusion OReject the nuypothess, there cet evidence that > ORegect the nu hypthes, there is uoent evidence that O Falto reject he nuhypothesi, there isinucent evidence that >0. O fatereect he nuhypethes, there issucent evidence that

Spose yeu are interested in buyinga new ncn Naviganer or Ton Car arestanding on the sales lking ata modelwth eferent optons. The st prceson the vehide. Asaslesperson aereches, yeu onder what the dealer invece prce for his medelwh soens. The fowing deta are besed on arndem selection of these cars of eferent modes and ogtens Let y be the dealer vce n theusands of dolars) ferthe iven vehie T MI 4 () verty that 19, I17, -7700.2, -6s36, Ey70, andrs64. 0Useasoevelof sgnticance te test the dam het . use 2decmal paces) ercl Conclusion Reject the uhypethess, theressucent evidence that ORetect the uhpothess, there cent evidnce thate O fetereject the ypethes, thereis ucet evidence that OFal to reject the uypothess, there cent evidence that ()venty that s,L .,nd O7 (0 Find the predcted dealer invcewhen the st prceis housand dars. e 2 deoma places) () Finda contidence interval for yhen cthousand dollars. ue 2 decmal place) lewer 3Uea soevelof significance to test the caim that>0. Use 2decimal paces) er Conclusion OReject the nuypothess, there cet evidence that > ORegect the nu hypthes, there is uoent evidence that O Falto reject he nuhypothesi, there isinucent evidence that >0. O fatereect he nuhypethes, there issucent evidence that

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Suppose you are interested in buying a new Lincoln Navigator or Town Car. You are standing on the sales lot looking at a model with different options. The list price is on the vehicle. As a salesperson approaches, you wonder what the dealer invoice price is for this model with its options. The following data are based on a random selection of these cars of different models and options. Let y be the dealer invoice (in thousands of dollars) for the given vehicle. 31.4 34.5 36.1 44.0 47.8 31.0 31.6 32.0 42.1 42.2 (a) Verify that Ex = 193.8, Ey = 178.9, Ex? = 7700.26, Ey? = 6536.81, Exy = 7088.36, and r - 0.964. Ex 193.8 Ey 178.9 Ex2 7700.25 Ey2[6536.81 Exy 7088.35 0.964 (b) Use a 10% level of significance to test the claim that p > 0. (Use 2 decimal places.) 6.25 critical t1.14 Conclusion O Reject the null hypothesis, there is sufficient evidence that p > 0. O Reject the null hypothesis, there is insufficient evidence that p > 0. O Fail to reject the null hypothesis, there is insufficient evidence thatp > 0. O Fail to reject the null hypothesis, there is sufficient evidence that p > 0. (c) Verify that S, = 1.7964, a = 4.0858, and b = 0.8177. S1.7964 a 4.0858 b0.8177 (d) Find the predicted dealer invoice when the list price is x = 44 (thousand dollars). (Use 2 decimal places.) 40.00 (e) Find a 95% confidence interval for y when x = 44 (thousand dollars). (Use 2 decimal place.) lower limit upper limit (f) Use a 10% level of significance to test the claim that B > 0. (Use 2 decimal places.) critical t Conclusion O Reject the null hypothesis, there is sufficient evidence that ß > 0. O Reject the null hypothesis, there is insufficient evidence that B > 0. O Fail to reject the null hypothesis, there is insufficient evidence that B > 0. O Fail to reject the null hypothesis, there is sufficient evidence that B > 0. (g) Find a 95% confidence interval for ß and interpret its meaning. (Use 3 decimal places.) lower limit upper limit Interpretation O For every $1,000 increase in list price, the dealer price decreases by an amount that falls within the confidence interval. O For every $1,000 increase in list price, the dealer price decreases by an amount that falls outside the confidence interval. O For every $1,000 increase in list price, the dealer price increases by an amount that falls outside the confidence interval. O For every $1,000 increase in list price, the dealer price increases by an amount that falls within the confidence interval. Submit Answer Assignment 2_ S...pdf Show All
Transcribed Image Text:Suppose you are interested in buying a new Lincoln Navigator or Town Car. You are standing on the sales lot looking at a model with different options. The list price is on the vehicle. As a salesperson approaches, you wonder what the dealer invoice price is for this model with its options. The following data are based on a random selection of these cars of different models and options. Let y be the dealer invoice (in thousands of dollars) for the given vehicle. 31.4 34.5 36.1 44.0 47.8 31.0 31.6 32.0 42.1 42.2 (a) Verify that Ex = 193.8, Ey = 178.9, Ex? = 7700.26, Ey? = 6536.81, Exy = 7088.36, and r - 0.964. Ex 193.8 Ey 178.9 Ex2 7700.25 Ey2[6536.81 Exy 7088.35 0.964 (b) Use a 10% level of significance to test the claim that p > 0. (Use 2 decimal places.) 6.25 critical t1.14 Conclusion O Reject the null hypothesis, there is sufficient evidence that p > 0. O Reject the null hypothesis, there is insufficient evidence that p > 0. O Fail to reject the null hypothesis, there is insufficient evidence thatp > 0. O Fail to reject the null hypothesis, there is sufficient evidence that p > 0. (c) Verify that S, = 1.7964, a = 4.0858, and b = 0.8177. S1.7964 a 4.0858 b0.8177 (d) Find the predicted dealer invoice when the list price is x = 44 (thousand dollars). (Use 2 decimal places.) 40.00 (e) Find a 95% confidence interval for y when x = 44 (thousand dollars). (Use 2 decimal place.) lower limit upper limit (f) Use a 10% level of significance to test the claim that B > 0. (Use 2 decimal places.) critical t Conclusion O Reject the null hypothesis, there is sufficient evidence that ß > 0. O Reject the null hypothesis, there is insufficient evidence that B > 0. O Fail to reject the null hypothesis, there is insufficient evidence that B > 0. O Fail to reject the null hypothesis, there is sufficient evidence that B > 0. (g) Find a 95% confidence interval for ß and interpret its meaning. (Use 3 decimal places.) lower limit upper limit Interpretation O For every $1,000 increase in list price, the dealer price decreases by an amount that falls within the confidence interval. O For every $1,000 increase in list price, the dealer price decreases by an amount that falls outside the confidence interval. O For every $1,000 increase in list price, the dealer price increases by an amount that falls outside the confidence interval. O For every $1,000 increase in list price, the dealer price increases by an amount that falls within the confidence interval. Submit Answer Assignment 2_ S...pdf Show All
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