-Run a multiple linear regression using the data and show the output from Excel. **Note**: exclude the dummy variable "iOS" when running the multiple regression. Also, remember to tick all the graph options which may help you answer Part N.

-Is the coefficient estimate for the Battery Score statistically different than zero at the 5% level of significance? Set-up the correct hypothesis test using the results found in the table in Part (G) using both the critical value and p-value approach. Interpret the coefficient estimate of the slope.

-Interpret the remaining slope coefficient estimates. Discuss whether the signs are what you are expecting and explain your reasoning.

-Interpret the value of the Adjusted R^{2}. Is there a large difference between the R^{2} and the Adjusted R^{2}? If so, what may explain the reasoning for this?

-Is the overall model statistically significant at the 5% level of significance? Use the p-value approach.

DATA:

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