mathxi com Take a Test Shaquaille Simpson Quizzes and Tests QMTH 210 Section 002
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mathxi com Take a Test Shaquaille Simpson Quizzes and Tests QMTH 210 Section 002 Shaquille Simpson 4 I 3/23/17 5:54 P Submit Q Quiz: Chapter 7 Quiz 2 This Quiz: 4 pts poss This Question: 1 pt use the advertised prices for used cars of a particular modelin the accompanying table to create a linear model for the relationship between a cars Age and its Price. Complete parts a through g. Click the icon to view the data table a) Findthe equation of the line of regression Price OAge (Round to the nearestinteger as needed.) b)Explain the meaning of the slope of the line. Select the co Data Table (Round to the nearest integer as needed.) O A. The slope indicates that every $1 increase in Price in Age (y) Price Advertised (s) The slope indicates that every $1 increase in Price 17,608 o C. The slope indicates that every 1-year increase in Age 14,978 O D. The slope indicates that every 1-year increase in Ag 16,009 13,988 14,979 c) Explain the meaning of the y-intercept of the line. Select th 14,608 ete your choice. (Round to the nearest integer as needed.) 13,998 OA The y intercept means that a carofthis model that 11,979 9,968 O B. The yintercept means that a new car of this model c 11,579 O C. The yintercept indicates that every 1-year increase 10,928 O D. The y-intercept indicates that every S1 increase in Pr 9,969 d) If you want to sell a 7-year-old car of this model, what prio (Round to the nearest dolar as needed.) Click to select your answer(s)Explanation / Answer
frm above
a) equation price =17798 -845*age
b)option C, 845
c)option B , 17798
d)price =17798-845*7=11883
x y (X-Xbar)^2 (Y-Ybar)^2 (X-Xbar)(Y-Ybar) Yi' (Y-Yi')^2 1.00 17608.000 19.91 19559526.84 -58309462.24 16953.2 428763.04 2.00 14978.000 11.98 3213469.92 -23632738.08 16108.69 1278459.1 2.00 16009.000 11.98 7972803.84 -37224807.62 16108.69 9938.02735 4.00 13988.000 2.14 644191.46 -10579582.08 14419.67 186338.096 4.00 14979.000 2.14 3217056.15 -23642334.24 14419.67 312851.206 5.00 14608.000 0.21 2023834.53 -18750617.93 13575.16 1066761.31 6.00 13998.000 0.29 660343.76 -10709770.70 12730.65 1606180.39 7.00 11979.000 2.37 1455363.84 15898200.46 11886.14 8623.36385 7.00 9968.000 2.37 10351563.76 42399931.92 11886.14 3679253.12 7.00 11579.000 2.37 2580471.53 21169554.30 11886.14 94333.7087 8.00 10829.000 6.44 5552548.46 31050986.38 11041.63 45210.4904 8.00 10928.000 6.44 5095785.30 29746425.30 11041.63 12911.2283 10.00 9959.000 20.60 10409557.69 42508858.22 9352.607 367712.596 Total 71.00 171410.00 89.23 72736517.08 -75356.31 9097335.68 mean 5.46 13185.38 SSx Ssy SxyRelated Questions
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