Suppose these data show the number of gallons of gasoline sold by a gasoline distributor in Bennington, Vermont, over the past 12 weeks. Week Sales (1,000s
of gallons)
1 17
2 21
3 19
4 24
5 18
6 16
7 21
8 19
9 22
10 21
11 16
12 23
*PLEASE REFER TO ATTACHED IMAGE FOR DATA!

PART 1.Compute four-week and five-week moving averages for the time series.

PART 2. Compute the MSE for the four-week moving average forecasts. (Round your answer to two decimal places.)

PART 3.Compute the MSE for the five-week moving average forecasts. (Round your answer to two decimal places.)

21, i'm pretty sure it's right lol

Answer: d. 39 cmin the diagram, the approximate length of the minor arc de is 39 centimetres.step-by-step explanation: the formula for the length of an arc in a circle is as displayed below.let the length of the minor arc de = xx = 2( pi )r × angle of sector / 360°from this, we will substitute the values given from the problem into the formula to obtain the length of the minor arc de.x = 2( pi )r × angle of sector / 360°r = radius = 25cmpi as an approximate value = 3.14angle of sector = 120°x = 2( 3.14 )( 25 ) × 120° / 360°x = 157 × 1 / 4x = 39.25x = 39 ( rounded to the nearest whole number as an approximate value )

Period is the time it takes for one “cycle” to complete. in the parent sine function, period is 2*pi since sin(0) = 0, sin(pi/2) = 1, sin(pi) = 0, sin(3pi/2) = -1, and sin(2pi) = 0. at that point, the sequence repeats itself. i’m not sure if your graph is similar to the sine function since you didn’t provide a picture, but you can find the period by looking at a graph.

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