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

question 39

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.)
$\begin{array}{|c|c|}\hline \text { Week } & \text { Units sold } \\\hline 1 & 88 \\\hline 2 & 44 \\\hline 3 & 54 \\\hline 4 & 65 \\\hline 5 & 72 \\\hline 6 & 85 \\\hline\end{array}$
-What is the formula used to calculate the value of at in the linear trend equation Ft₊k = at + btk while using double exponential smoothing?

• A)a_t = β(b_t - bt₋₁)+ (1 -β)bt₋₁
• B)a_t = αF_t₋₁ + (1 - α) (a_{t ₊₁} + b_t₊₁)
• C)a_t = αF_t + (1 - α) (a_{t ₋₁} + b_t₋₁)
• D)a_t = β(b_t + b_t₋₁)+ (1 + γ)b_t₋₁

Grasp the fundamentals of net exports and their implications on a country's economy.

Distinguish between nominal and real exchange rates and their computations.

Explain the factors leading to currency appreciation and depreciation.

Analyze the relationship between domestic saving, domestic investment, and international capital flows.