How much difference does choice of model make

Assignment Help Basic Statistics

Reference no: EM13118657

Make an Excel graph of the data on U.S. diesel new car sales. (b) Discuss the underlying causes that might explain the trend. (c) Use Excel, MegaStat, or MINITAB to fit three trends (linear, quadratic, and exponential) to the time series. (d) Which trend model do you think is best to make forecasts for the next 3 years? Why? (e) Use each of the three fitted trend equations to make numerical forecasts for 2004, 2005, and 2006. How much difference does the choice of model make? Which forecasts do you trust the most, and why? (f) If you have access to Ward's Automotive Yearbook, check your forecasts. How accurate were they?

Reference no: EM13118657

Questions Cloud

Asian philosophy and literature paper : Asian Philosophy and Literature Paper The philosophy of Confucius permeates Asian culture and literature. In this paper identify major themes from Confucian thinking found in Asian American literature

Illustrate what is the magnitude of the net torque : Illustrate what is the magnitude of the net torque on the wheel due to these three forces for an axis perpendicular to the wheel and passing through its center?

Exponential growth and decay atmospheric pressure : If the temperature is constant then the atmospheric pressure P (in pounds/square inch) varies with the altitude above sea level h in accordance with the law

Which of the following is true : The cleavage of a peptide bond by chymotrypsin is caused by a nucleophilic attack by an active-site residue. Which of the following is true?

How much difference does choice of model make : How much difference does the choice of model make? Which forecasts do you trust the most, and why? (f) If you have access to Ward's Automotive Yearbook, check your forecasts.

Compute the value that the spring constant should have : Compute the value that the spring constant should have so that passengers undergo an acceleration of no more than 7.0 when brought to rest. Let be the total mass of the elevator and passengers.

What proportion of men would be expected to be color blind : what proportion of men would be expected to be color blind.

What is the pressure of dry hydrogen gas : Hydrogen gas produced in the laboratory by the reaction of zinc and hydrochloric acid was collected over water at 25°C. The barometric pressure at the time was 742.5 mm Hg.

Probability revenue source comes from corporate income taxes : 3% from excise taxes and 5% other. If a revenue source is selected at random, what is the probability that it comes from individual or corporate income taxes?

User Account

All Pages