The files below reveal monthly returns for Welcome123's stock index for Dell stock.

The files below reveal monthly returns for Welcome123's stock index for Dell stock. The beta of a stock can be defined as the slope of the least-squares line used to predict the monthly return for a stock from the monthly return for the market. Below reveals what is trying to be calculated.

i. estimate dell's beta and interpret the significance

ii. should individuals invest in a high beta or low beta stock.

i would prefer to upload document in excel if that can be accomplished.