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Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter4: Equations Of Linear Functions

Section4.5: Correlation And Causation

Problem 11PPS

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18. Fit a straight line trend for the following data.
1997
1996
1998
1999
2000
Year:
Per capita:
25
30
32
37
40
(Consumption of cotton in Kgs)
Estimate the per capita consumption for the year 2002. Represent the trend line graphi-
cally.
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The U.S. Census tracks the percentage of persons 25 years or older who are college graduates. That data forseveral years is given in Table 4[14]. Determine whether the trend appears linear. If so, and assuming the trendcontinues. in what year will the percentage exceed 35%?
Amex PLC has gathered following information on the sales of face mask from April 2020 toSeptember 2020.Month Sales ($)April 17,000May 18,000June 19,500July 22,000August 21,000September 23,000You are required to;a. Using linear trend equation forecast the sales of face masks for October 2020.
Create a 2-D line chart of Cash Sales for months 1-18. Add a trend line with a forward forecast of 3 periods to the chart. Be sure to include the R-squared value on the chart. Using =TREND(), complete the forecast table for months 19-21 1 $ 2,145,600 19 2 $ 2,175,200 20 3 $ 2,255,200 21 4 $ 2,505,600 5 $ 2,748,800 6 $ 2,358,000 7 $ 3,165,200 8 $ 3,253,600 9 $ 3,484,000 10 $ 3,731,200 11 $ 3,741,200 12 $ 3,558,800 13 $ 3,771,200 14 $ 3,787,600 15 $ 3,813,600 16 $ 3,822,800 17 $ 3,828,000 18 $ 3,897,200
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