[SOLVED] The correct time series plot

Problem 6-19
Consider the following time series.

1. Choose the correct time series plot.
   

   (i)		(ii)
   (iii)		(iv)

   Plot (i)Plot (ii)Plot (iii)Plot (iv)Plot (ii)

   What type of pattern exists in the data?

   Horizontal PatternDownward Trend PatternUpward Trend PatternDownward Trend Pattern
2. Use simple linear regression analysis to find the parameters for the line that minimizes MSE for this time series. Do not round your interim computations and round your final answers to three decimal places. For subtractive or negative numbers use a minus sign. (Example: -300)
   y-intercept, b₀ = fill in the blank 3
   Slope, b₁ = fill in the blank 4
   MSE = fill in the blank 5
3. What is the forecast for t = 8? If required, round your answer to three decimal places.
   fill in the blank 6