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Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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please do iot by excel

2. The owner of a small hardware store has noted a sales pattern for window locks that seems to parallel the number of break-ins reported each week in the newspaper. The data are: Sales 46 18 20 22 27 34 14 37 30 Break- 9 3 5 4 7 6 4 ins (a) Plot the data [Sales (Y-Axis) versus Break-ins (X-Axis)] to determine which type of equation, linear or nonlinear, is appropriate. (b) Obtain a regression equation for the data (using Data Analysis → Regression) (c) Estimate average sales when the number of break-ins is five.
Transcribed Image Text:2. The owner of a small hardware store has noted a sales pattern for window locks that seems to parallel the number of break-ins reported each week in the newspaper. The data are: Sales 46 18 20 22 27 34 14 37 30 Break- 9 3 5 4 7 6 4 ins (a) Plot the data [Sales (Y-Axis) versus Break-ins (X-Axis)] to determine which type of equation, linear or nonlinear, is appropriate. (b) Obtain a regression equation for the data (using Data Analysis → Regression) (c) Estimate average sales when the number of break-ins is five.
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