Use the Data Given Below to Answer the Following Question(s)

question 18

Multiple Choice

Use the data given below to answer the following question(s) .
The table provided below gives the sales details of the number of android smart phones at an electronic retail store for the past 6 weeks.The time series appears to be relatively stable, without trend, seasonal, or cyclical effects.The value of k is set at 3.(Hint: Optimize α value.)
$\begin{array}{|c|c|}\hline \text { Week } & \text { Units sold } \\\hline 1 & 88 \\\hline 2 & 44 \\\hline 3 & 54 \\\hline 4 & 65 \\\hline 5 & 72 \\\hline 6 & 85 \\\hline\end{array}$
-Which of the following is the value of the root mean square error for the given data?

• A)11.56
• B)21.72
• C)13.87
• D)20.13

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Definitions:

End of Quarter Payments

Payments made at the conclusion of each quarter, often related to financial agreements or obligations.

Lump Amount

A single large sum payment or investment, as opposed to smaller, regular payments or investments.

Retirement

The period in life when one chooses to permanently leave the workforce behind, usually upon reaching a certain age or financial standing.

Compounded Semi-Annually

A method where interest is calculated and added to the principal at six-month intervals, resulting in interest on interest.