(b) Show the four-quarter and centered moving average values for this time series.Centered MovingAverageYear Quarter31213243412341234Time SeriesValue42356358(c) Compute seasonal indexes and adjusted seasonal indexes for the four quarters. (Round your answers to three decimal places.)AdjustedSeasonalIndexQuarter Seasonal Index766Four-QuarterMoving Average Consider the following time series data.Quarter Year 112344235(a) Construct a time series plot.Year 2635СЛ8Year 37669

Answered: Image /qna-images/answer/8569075b-13f6-4f6d-b5e0-3896aa3b4012.jpg

Answered: (b) Show the four-quarter and centered…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Using the time series data in the table, respond to the following items. Period Sales 1 $ 615 2 676 3 761 4 710 5 784 6 801 7 852 8 698 9 1,193 10 1,115 11 1,231 12 1,259 13 1,495 14 1,229 15 1,652 16 1,337 17 1,673 18 1,613 Please show work, thanks.
Enter T for true or F for false: a. Time series data are visualized graphically by plotting time as the causal variable. ____ b. Time series models may contain combinations of sums and products of the classical variables. ____ c. Three-year moving averages are called centered moving averages when the moving totals are positioned on the same tabular line as the middle time period. ____
Consider the following time series data. Month 1 2 3 4 5 6 Value 22 11 18 10 17 21 13 (a) Compute MSE using the most recent value as the forecast for the next period. MSE = What is the forecast for month 8? (b) Compute MSE using the average of all the data available as the forecast for the next period. (Round your answer to two decimal places.) MSE = What is the forecast for month 8? (c) Which method appears to provide the better forecast? O The most recent value provides a better forecast, because its MSE is smaller than the MSE using the average of all the previous values. O The average of all the previous values provides a better forecast, because its forecast for month 8 is larger than the month 8 forecast using the most recent value. O The average of all the previous values provides a better forecast, because its MSE is smaller than the MSE using the most recent value. O The most recent value provides a better forecast, because its forecast for month 8 is smaller than the month 8…
Using a weight of 1/2 for the most recent observation, 1/3 for the second most recent, and 1/6 for third most recent, compute a three-week weighted moving average for the time series. Use rounded for two decimal places values for intermediate calculations. Use minus sign for negative values.
The elevation of a lake surface (feet above sea level) varies according to the annual flow of a river that feeds it. A geological survey provided the following data from equally spaced intervals of time over a 15 year period. Time Period Elevation 1 4817 2 4819 3 4824 4 4822 5 4826 6 4831 7 4836 8 4837 9 4839 10 4837 11 4832 12 4827 13 4823 14 4818 15 4817 Make a time-series graph displaying the data.
A time series is a collection of data that _______. Multiple Choice records past performance records future performance is limited to yearly data is limited to quarterly data
Corporate triple-A bond interest rates for 12 consecutive months follow. 9.5 9.3 9.5 9.7 9.8 9.8 9.9 (a) Construct a time series plot. 10.6 9.9 9.8 9.7 9.7
I need only part e I have provided the values Values are The forecast for week 7 is :14 MSE = 60.6667/3 = 20.22 The forecast for the week 7 I: 15.78 MSE = 106.1146/6 =17.6858
Find the MSE for question (b)
Hudson Marine provides boats sales, service, and maintenance. Boat trailers are one of its top sales items. Suppose the quarterly sales values for the seven years of historical data are as follows. Do not round intermediate calculations. a. Compute the centered moving average values (first find Four-Quarter Moving Average) for this time series (to 3 decimals). Centered Moving Average t 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 Sales 5 17 8 6 9 16 16 7 14 24 22 12 18 26 26 20 24 33 28 23 22 36 29 18 28 42 33 28 9.625 Year 1 2 3 4 5 6 7 Quarter 1 5 9 14 18 24 22 28 Quarter 2 17 16 24 26 33 36 42 Quarter 3 B 16 22 26 28 29 33 Quarter 4 6 7 12 20 23 18 28 Total Yearly Sales 36 48 72 90 108 105 131
3:18 K The accompanying data represent the percentage of recent high school graduates (graduated within 12 months before the given year-end) who enrolled in college in the fall. Construct a time-series plot and comment on any trends. Click the icon to view the data table. Year 1989 Choose the correct time-series plot below. O A. 1990 1991 1992 1993 1994 1995 1996 1997 Percent Enrolled College Enrollment 70+ 64- 58++ 1989 1997 2005 Year College Enrollment Percent Enrolled 59.6 60.1 62.3 61.7 62.4 61.7 61.7 65.5 67.5 Q ||| = OB. Print Percent Enrolled Comment on any trends. Choose the correct comment below. Year 1998 1999 2000 2001 2002 2003 2004 2005 College Enrollment 70- 64- 58 1989 (...) 1997 2005 Year A. The percentage of high school graduates who enrolled in college has generally decreased, though there have been some up years. B. The percentage of high school graduates who enrolled in college has generally increased, though there have been some down years. OC. There are not any…
b and c part

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