llustration 12.12. Fit a trend line by the method of four yearlymoving averages to the following time series data:Production of sugar in IndiaYearProduction(in lakhs of tonnes)YearProduction19445195110194519529.19461953101947195411194819551119491950S677 689

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Answered: fllustration 12.12. Fit a trend line by…

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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1. The data are weekly averages of fasting blood glucose levels (m mols) of a diabetic patient treated with different doses of insulin (units) given over a period of 32 weeks. To recognize the trend in blood glucose change, 8 weeks from the treatment duration of first 12 weeks were chosen randomly and the data are as follows: Week 4 12 7 6 9 2 11 8 Blood sugar (m/mol): 8.1 4.0 5.3 6.1 5.7 7.3 4.8 4.6 Dose/day (units): 15 55 45 30 35 25 Lost 50 Evaluate the relationships between blood sugar levels and the dose of insulin/day. Describe and interpret this relationship?
a. Compute a three-period moving average for these stock prices (in R, order = 3). What are the first two moving average values? (Round your answer to two decimal points) First: $ Second: $
Q. 2 Describe the method of Moving averages for estimating the trend in a time series
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12. Fit a straight line trend by the method of least squares to the following data. Assuming that the same rate of change continues, what would be the predicted earming for the year 2015? Year 2001 2002 2003 2004 2005 2006 2007 2008 Eamings (Rs. lakh): Do not plot the trend values on the graph. 38 40 65 72 69 60 87 95
Consider the following time series data. Month 1. 3 4 5 7 Value 20 11 19 11 19 22 15 Round your answers to two decimal places. a. Compute MSE using the most recent value as the forecast for the next period. Mean squared error is What is the forecast for month 8? b. Compute MSE using the average of all data available as the forecast for the next period. Mean squared error is What is the forecast for month 8? c. Which method appears to provide the better forecast? - Select your answer -
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fllustration 12.12. Fit a trend line by the method of four yearly moving averages to the following time series data: Production of sugar in India Year Production(in lakhs of tonnes) Year Production 1944 5 1951 10 1945 6. 1952 1946 1953 10 1947 7 1954 11 1948 1955 11 1949 1950 6.