Pleas i need a help

Download monthly adjusted close price data for Apple, Alpabet(GOOG). for the period of May. 2020 through Nov. 2020(use Finance. Yahoo.com). Stock returns are computed as P+1 - P. rt+1 = P 1. Assume that you are constructing portfolios with Apple and Microsoft such that WAAPL + WGOOG = 1 1. Create a column in Excel and apply a range of weights between -1 and +1 (with step size of 0.1) to Apple (WAAPL) to construct a portfolio consisting of the two shares (remember that the sum of weights should be one; so you can easily calculate the weight for Alpabet once you know the weight for Apple. Don't worry if it gets larger than 1!). Plot a scatter-plot graph showing average return and the standard deviation of the portfolio under alternative values of WAAPL- 2. Now apply a constraint on weights: eliminate negative values of weights and change the weight only between 0 and 1 (with step size of 0.05) and re-plot the scatter plot of average return and variance of portfolio. 3. Eliminating negative weights is called short sales constraints. Compare the results of parts (1) and (2) and discuss the effects of imposing short-sales constraints on a market.

4. Use the SP500 index as a proxy for the market portfolio. Create a returns scatterplot (the way we did in the class) and calculate Apple's beta. (Hint: you can either use the "SLOPE" function in apply the procedures described in Question #2).