Table 14.7.2 gives the dealer cost and sticker price for luxury cars and sports utility vehicleswith popular
Question:
(a) Obtain a dotplot and describe the sticker price data.
(b) Identify any outliers and test for normality with and without outliers for sticker price data. If the data are not normal, does any simple transformation make the data normal?
(c) Obtain a 95% confidence interval for sticker price.
(d) Do parametric or nonparametric methods seem more appropriate for the data?
(e) Obtain a scatterplot between dealer cost and sticker price.
(f) Fit a least-squares regression line and run a residual model diagnostics using Minitab.
Table 14.7.2 Dealer Cost and Sticker Price for Luxury and Sport Cars
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a Let X the dealer cost and Y the sticker price The following is the dot plot of the sticker price d...View the full answer
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Related Book For 
Mathematical Statistics With Applications In R
ISBN: 9780124171138
2nd Edition
Authors: Chris P. Tsokos, K.M. Ramachandran
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