Maurice Tutor

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Algebra,Applied Sciences,Biology,Calculus,Chemistry,Economics,English,Essay writing,Geography,Geology,Health & Medical,Physics,Science Hide all
Teaching Since: May 2017
Last Sign in: 305 Weeks Ago, 1 Day Ago
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Education

  • MCS,PHD
    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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  • Professor
    Phoniex University
    Oct-2001 - Nov-2016

Category > Communications Posted 19 Sep 2017 My Price 7.00

Negotiating Price

New Car: Negotiating Price Suppose you are interested in buying a new Toyota Corolla. 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 information taken from Consumer Guide (Vol. 677). Let x be the list price (in thousands of dollars) for a random selection of Toyota Corollas of different models and options. Let y be the dealer invoice (in thousands of dollars) for the given vehicle

x

12.6

13

12.8

13.6

13.4

14.2

y

11.6

12

11.5

12.2

12

12.8

(a) Verify that Σx = 79.6, Σy = 72.1, Σx2= 1057.76, Σy2= 867.49, Σxy = 957.84, and r ≈ 0.956.

(b) Use a 1% level of significance to test the claim that ρ > 0.

(c) Verify that Se ≈ 0.1527, a ≈ 1.965, and b ≈ 0.758.

(d) Find the predicted dealer invoice when the list price is x = 14(thousand dollars).

(e) Find an 85% confidence interval for y when x = 14 (thousand dollars).

(f) Use a 1% level of significance to test the claim that β > 0.

(g) Find a 95% confidence interval for b and interpret its meaning.

Answers

Maurice Tutor
(5)
Status NEW Posted 19 Sep 2017 11:09 AM My Price 7.00

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