Identify the Components of Simple Linear Regression Models and Discuss

question 32

Multiple Choice

Identify the components of simple linear regression models and discuss their applications Use the data given below to answer the following question(s) .
The worldwide sales of cars from 1981-1990 are shown in the table below. Given: α = 0.2 and β
= 0.15 (Hint: Use XLMiner) $$\begin{array} { | c | c | } \hline \text { Year } & \begin{array} { c } \text { Units sold in } \\\text { thousands }\end{array} \\\hline 1981 & 888 \\\hline 1982 & 900 \\\hline 1983 & 1000 \\\hline 1984 & 1200 \\\hline 1985 & 1100 \\\hline 1986 & 1300 \\\hline 1987 & 1250 \\\hline 1988 & 1150 \\\hline 1989 & 1100 \\\hline 1990 & 1200 \\\hline\end{array}$$
-Using the double exponential smoothing, find the value of the root mean square error for the given data.

• A) 8.10
• B) 91.27
• C) 11976.17
• D) 109.44

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Definitions:

Minimum Price

A minimum price is the lowest legal price that can be charged for a good or service, set by government regulations to ensure fair practices and prevent market abuses.

Long Run

A period in which all factors of production and costs are variable, and companies can adjust all inputs to the production process.

Market Price

The actual selling price of a good or service in the marketplace, determined by supply and demand.

Price Takers

Market participants who accept prevailing prices because they have no power to influence the market price due to their small market share.