Go to http://finance.yahoo.com, download monthly Adj. close prices (adjusted for dividend and stock split) from 01/01/2013 through 12/31/2018 for the following three companies. You can use a monthly risk free rate of 0.05% for related analysis.

Company

Ticker

APPLE

AAPL

WALMART

WMT

GOLDMAN SACHS

GS

Q1: (6') List dates, Adj. close prices, and monthly holding period returns for the three companies.

Q2: (6') Compute monthly holding period return using Adj. close prices for each stock.

Q3: (6') Use the EXCEL statistical functions to compute mean (AVERAGE) and standard deviation (STDEV) of the monthly return for each stock.