You are given the following information:Use the Variance Covariance matrix in the Excel file: Efficient Portfolios Data.Construct a model to determine the following:

a.Standard deviations for the individual assets.

b. Calculate an envelope portfolio assuming the risk-free rate is 6%.

c.Calculate an envelope portfolio assuming the risk-free rate is 12%.

Efficient Portfolios Data
	Variance-Covariance Matrix
	Dell	INTC	MSFT				Means
Dell	0.0070	0.0011	0.0004				2.0000%
INTC	0.0011	0.0080	-0.0001				4.0000%
MSFT	0.0004	-0.0001	0.0064				6.0000%

d. Compute the mean and variance for each of these envelope portfolios.

e. Compute the covariance between these two envelope portfolios.

f.Create a one-way data table using EXCELs Data Table feature that determines the different means and standard deviations for combinations of Envelope Portfolio 1 and Envelope Portfolio 2 by varying the proportion of Portfolio 1.

g.Graph the combinations of the portfolios from the one-way data table and add the individual asset means and standard deviations to the graph.

h. Provide a title on the graph and label the axes of the graph.

i.Could the portfolio combinations be on the efficient frontier? Why or why not?