The following data shows the quarterly sales of the LukeHydro tents at a Aubrey Sporting Goods Store. The store owner wants to forecast the quarterly sales for the next year. (a) Construct a time series plot. What type of pattern exists in the data? (b) Use dummy variables and multiple regression to find a multiple regression equation that accounts for seasonal effects in the data (c) Based on this model, estimate the quarterly sales for the fourth year. Year 1 1 1 1 2 2 2 2 3 3 3 3 4 4 4 4 Quarter 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 a Q1 a Q2 Q3 Sales 74 53 61 82 71 45 65 87 67 57 58 78

The following data shows the quarterly sales of the LukeHydro tents at a Aubrey Sporting Goods Store. The store owner wants to forecast the quarterly sales for the next year. (a) Construct a time series plot. What type of pattern exists in the data? (b) Use dummy variables and multiple regression to find a multiple regression equation that accounts for seasonal effects in the data (c) Based on this model, estimate the quarterly sales for the fourth year. Year 1 1 1 1 2 2 2 2 3 3 3 3 4 4 4 4 Quarter 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 a Q1 a Q2 Q3 Sales 74 53 61 82 71 45 65 87 67 57 58 78

Functions and Change: A Modeling Approach to College Algebra (MindTap Course List)

6th Edition

ISBN:9781337111348

Author:Bruce Crauder, Benny Evans, Alan Noell

Publisher:Bruce Crauder, Benny Evans, Alan Noell

Chapter3: Straight Lines And Linear Functions

Section3.CR: Chapter Review Exercises

Problem 15CR: Life Expectancy The following table shows the average life expectancy, in years, of a child born in...

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