You have recorded your company salesover the last 2 years and notice anincreasing trend in sales. After plottingthe sales in Excel, it shows you thefollowing best-fit line: y = 1036.7x +2729.5 where y is units sold and x isthe time period. You also observe thatthe sales show seasonality andcalculate the seasonal indices for eachseason in the table below.SeasonWinterSpringSummerFallSeasonalIndex0.820.781.261.13Using the trendline and seasonal index,what is the forecast for the nextSummer (time period 11)? (Hint: this issimilar to practice problem #28) 9,88917,14215,17012,06017,80810,21514,13313,097

Best fit line is:Y= 1036.7*X + 2729.5As there is a seasonality so the seasonal index are also…

Answered: You have recorded your company sales…

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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The accompanying data represent the yearly amount of solar power installed (in megawatts) in a particular area from 2000 through 2008. The trend forecasting equations below were found, where X is the number of years after 2000. Complete parts (a) through (d) below. = -10.711 +28.9000X₁ ₁ = 22.70 +0.259X; +3.5801X? Click the icon to view the data table. a. Compute the standard error of the estimate (Syx) for each model. Linear Quadratic Syx 22.431 8.032 (Round to three decimal places as needed.) b. Compute the MAD for each model. Linear Quadratic MAD 64.222 66.873 (Round to three decimal places as needed.) c. On the basis of (a) and (b) and the principle of parsimony, which forecasting model would you select? The model with the smallest values of Syx and MAD should be used, which is the quadratic model.
A car initially sold for $23,999. Its class life is 12 years, and the car depreciates by $750 each year. Express this as a linear function. Find the salvage value. Then, find the value after six years.
The attached table shows the level of water (y) measured in centimeters from the bottom of the container after (x) seconds. Create a table in DESMOS and graph the data. Attach a screenshot of your data plot from DESMOS. Does your data plot look linear or quadratic?
The line graph to the right indicates that in 1960, 23% of taxes came from corporate income tax. For the period from 1960 through 2010, this percentage decreased by approximately 0.18 each year. If this trend continues, by which year will corporations pay zero taxes? 24 T23% 20- 16 14%6 8 12 4- 0+ 1960 1980 2000 Year In , the corporate income tax will be zero. (Round to the nearest year as needed.) Textbook Get More Help - Clear All Skill Buil Help Me Solve This %23 73°F P Type here to search & %23 %24 6. Percentage of Taces ||
The equation of the trend line is W = 30.94(1+0.00763)L. What is the growth rate of the trend line's equation? Express the growth rate as a percentage. Include units.
Recently there has been a rise in fatal accidents caused by “distracted driving.” The United States National Highway Traffic Safety Administration (NHSTA) defines a distraction as anything that diverts attention from driving. The following model estimates the trend in distracted driving accidents over time based on data from the NHSTA:D = 0.015t - 29.97 In this model, D is the decimal to be turned into a percentage of all fatal accidents caused by distracted driving, and t is any calendar year between 2000 and 2020. Use the model to estimate the rate for 2005 and 2020. Note: this means to plug n 2005 for t and simplify and then turn your answer into a percent. Then plug in 2020 for t and simplify and then turn your answer into a percent.
According to the National Association of Colleges and Employers, the 2015 average starting salary for new college graduates in health sciences was $51,541. The average starting salary for new college graduates in business was $53,901 (National Association of Colleges and Employers website). Assume that starting salaries are normally distributed and that the standard deviation for starting salaries for new college graduates in health sciences is $11,000. Assume that the standard deviation for starting salaries for new college graduates in business is $15,000. a. What is the probability that a new college graduate in business will earn a starting salary of at least $65,000 (to 4 decimals)? b. What is the probability that a new college graduate in health sciences will earn a starting salary of at least $65,000 (to 4 decimals)? c. What is the probability that a new college graduate in health sciences will earn a starting salary less than $40,000 (to 4 decimals)? d. How much would a new…
A trendline is given to depict enrollment at a local college where x is the year and y represents enrollment. Y=178.09x-353194 Use the rrendline ro estimate the enrollment for 2009. Round to the nearest whole number.

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