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A video media consultant collected the following data on popular LED televisions sold through on-line retailers.   Manufacturer   Screen (in inches)   Price ($)   Sharp   46   736.50     Samsung   52   1,150.00     Samsung   46   895.00     Sony   40   625.00     Sharp   42   773.25     Samsung   46   961.25     Samsung   40   686.00     Sharp   37   574.75     Sharp   46   1,000.00     Sony   40   722.25     Sony   52   1,307.50     Samsung   32   373.75     Sharp   37   657.25     Sharp   32   426.75     Sharp   52   1,389.00     Samsung   40   874.75     Sharp   32   517.50     Samsung   52   1,475.00     Sony   40   954.25     Sony   52   1,551.50     Sony   46   1,303.00     Sony   46   1,430.50     Sony   52   1,717.00       c-1. Use statistical software to determine the regression equation. (Negative amounts should be indicated by a minus sign. Round your answers to 3 decimal places.)

A video media consultant collected the following data on popular LED televisions sold through on-line retailers.   Manufacturer   Screen (in inches)   Price ($)   Sharp   46   736.50     Samsung   52   1,150.00     Samsung   46   895.00     Sony   40   625.00     Sharp   42   773.25     Samsung   46   961.25     Samsung   40   686.00     Sharp   37   574.75     Sharp   46   1,000.00     Sony   40   722.25     Sony   52   1,307.50     Samsung   32   373.75     Sharp   37   657.25     Sharp   32   426.75     Sharp   52   1,389.00     Samsung   40   874.75     Sharp   32   517.50     Samsung   52   1,475.00     Sony   40   954.25     Sony   52   1,551.50     Sony   46   1,303.00     Sony   46   1,430.50     Sony   52   1,717.00       c-1. Use statistical software to determine the regression equation. (Negative amounts should be indicated by a minus sign. Round your answers to 3 decimal places.)

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 4BGP
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A video media consultant collected the following data on popular LED televisions sold through on-line retailers.
 

Manufacturer   Screen
(in inches)		   Price ($)  
Sharp   46   736.50    
Samsung   52   1,150.00    
Samsung   46   895.00    
Sony   40   625.00    
Sharp   42   773.25    
Samsung   46   961.25    
Samsung   40   686.00    
Sharp   37   574.75    
Sharp   46   1,000.00    
Sony   40   722.25    
Sony   52   1,307.50    
Samsung   32   373.75    
Sharp   37   657.25    
Sharp   32   426.75    
Sharp   52   1,389.00    
Samsung   40   874.75    
Sharp   32   517.50    
Samsung   52   1,475.00    
Sony   40   954.25    
Sony   52   1,551.50    
Sony   46   1,303.00    
Sony   46   1,430.50    
Sony   52   1,717.00    
 

c-1. Use statistical software to determine the regression equation. (Negative amounts should be indicated by a minus sign. Round your answers to 3 decimal places.)

d. Include the variable “Sony” in the multiple regression analysis as a “dummy” variable. Note that if “Sony = 0” the manufacturer is Samsung; if “Sony = 1” the manufacturer is Sony. (Negative amounts should be indicated by a minus sign. Round your answers to 3 decimal places.)
  
e. Test each of the individual coefficients to see if they are significant. (Negative amounts should be indicated by a minus sign. Round your t-value to 2 decimal places and p-value to 4 decimal places.)
 

 
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