Identify the Components of Simple Linear Regression Models and Discuss

question 16

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, calculate the value of the mean absolute deviation for the given data.

• A) 8.10
• B) 1.80
• C) 91.27
• D) 11976.17

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Definitions:

Tid

An abbreviation for "ter in die," which is Latin for "three times a day"; commonly used in medical prescriptions to indicate dosing frequency.

Prn

An abbreviation for the Latin phrase "pro re nata," meaning "as the situation demands," often used in medical prescriptions to indicate taking medicine as required.

Intranasal

Administration or action occurring within the nasal passages, often referencing medication delivery.

Subcutaneous

Located or applied under the skin's surface, often referring to tissues, injections, or implants.