Illustration 12.11. Given below are the figures of production inthousand quintals of a sugar factory.Year196419651966 1967196819691970Production77889485919890(i) Fit a straight line trend by the 'least square' method. Tabulatethe trend values.(ii) What is the monthly increase in production?

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Answered: fllustration 12.11. Given below are the…

College Algebra

1st Edition

ISBN:9781938168383

Author:Jay Abramson

Publisher:Jay Abramson

Chapter3: Functions

Section3.3: Rates Of Change And Behavior Of Graphs

Problem 27SE: Table 4 gives the population of a town (in thousand) from 2000 to 2008. What was the average rate of...

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X 3.29 The quarterly revenues of a small medical supply company for the last several years (27 quarters) were plotted and seen to have a roughly linear trend component. The information below was computed for y₁. Y₂..... Y27 using one of the company's spreadsheet computer programs. t=1,2,..., 27 y, quarterly gross revenues ($10,000) Σ y = 7,146 3ty w 113,615 SS-120,640 a. Using the method of least squares, fit a linear trend model to the revenue data. b. Test for significance of the trend component assuming indepen- dent, normally distributed error terms. c. Forecast revenues for t= 28 and t = 29 using the model fit in part (a). d. Construct 95% prediction intervals for y28 and Y29- e. Construct 90% prediction intervals for y2a and Y20
Q1) Below are the given figures of production of boilers: Year Production 2014 80 2015 2016 90 92 2017 83 2018 94 2019 99 2020 92 Fit a straight-line trend. Also, plot these figures on a graph (no need of graph paper) to show the trend line.

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