Question

Consider the following time series data 4 10 13 15 a. Which of the following is a correct time series plot for this data? TimeSeries Value 14 12 10 4 2 TimePeriod(t) TimeSeries Value 14 12 10 4 2 TimePeriod(t) TimeSeries Value 14 7つ

Answer 1

graph 1 is correct

for pattern: please provide option given (it is trend)

b)

(x-X)(y-y) 8.4000 0.2000 0.0000 1.8000 7.6000 18.0000 (x-x) (y-y) 17.6400 0.0400 1.4400 3.2400 14.4400 36.8000 S.No X-X 4.0000 1.0000 0.0000 1.0000 4.0000 10.0000 2 2 10 13 15 56 11.2000 4 Total 15 3.0000 Mean SSY sample size here n- 11.2000 3.0000 from above 10.0000 Σ(X-X)(Y-Y)= 18.0000 slope- 1.80000 intercept- 5.80000 hence line equation: 5.8000 1.8000 x

trend equation: Tt =5.8+1.8*t

c)

forecast =5.8+1.8*6=16.6