Wolfman2004
26.06.2020 •
Mathematics
Develop a 3-week moving average for the following time series Time PeriodTime Series Value 19 22 39 416 511 62 77 Find the value for MSE. Round your calculations to 2 decimal places.
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Ответ:
MSE = 198.18 / 3 = 66.06
Step-by-step explanation:
Time period : Time series value
1 : 9
2 : 2
3 : 9
4 : 16
5 : 11
6 : 2
7 : 7
3 weeks moving average
F4 = average of weeks 1-3 = ( 9 + 2 + 9 ) / 3 = 20 / 3 = 6.67
F4 = average of weeks 2-4 = ( 2 + 9 + 16 ) / 3 = 27 / 3 = 9
F4 = average of weeks 3-5 = ( 9 + 16 + 11 ) / 3 = 36 / 3 = 12
F4 = average of weeks 4 - 6 = ( 16 + 11 + 2 ) / 3 = 9.67
attached is the table showing the development of the 3-week moving average
Ответ:
Step-by-step explanation:
First, create an equation for the price of the car for both dealerships:
Dealership A: y = 150x + 2500
Dealership B: y = 125x + 3000
where y is the total cost of the car and x is the number of months that have passed.
You know that y is equal to "150x + 2500" AND y is equal to "125x + 3000," so "150x + 2500" must be equal to "125x + 3000"
Now, just solve for x to find the number of months at which the total amount paid would be the same for both dealers:
So, after 20 months, the price of the car at both dealerships is the same. To find that price, just plug in 20 for x in one of the equations (because x was the number of months):
So, the car costs the same after 20 months, $5500 at either dealership.
Step-by-step explanation: