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Calculations with Multiple Regressions

Your study includes measuring several physical characteristics, including weight of the communication device in grams (TW), size in centimetres (SZ), the size of the screen in percentage (%SC), and estimated battery life in months. The following table shows summary statistics for these variables.

The following table shows the results of fitting a multiple regression model for predicting the weight using the other variables. The predictive power is good with R² = 0.669.

QUESTIONS
a. Interpret the effect of battery life on weight in the multiple regression equation.
b. In the population, does battery life help you predict weight if you already know the size and percentage of size of screen?

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a. Interpret the effect of battery life on weight in the multiple regression equation.
NOTE: can you please check the second table (predictors)? I think TW should be SZ.
First, the multiple regression life is ...

Solution Summary

This solution discusses the impact of each of the independent variable on the dependent variable.

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