The title of each of the following exercises identifies the data table to be used for the
Question:
The title of each of the following exercises identifies the data table to be used for the problem.
Tech Stocks These data give the monthly returns on stocks in three technology companies: HP, IBM, and Microsoft. For each month from January 1990 through the end of 2014 (300 months), the data give the return earned by owning a share of stock in each company. The return is the percentage change in the price, divided by 100.
(a) Describe and contrast histograms of the returns on the three stocks. Be sure to use a common scale for the data axes of the histograms to make the comparison easier and more reliable.
(b) Find the mean, SD, and coefficient of variation for each set of returns. Are means and SDs useful summaries of variables such as these?
(c) What does comparison of the coefficients of variation tell you about these three stocks?
(d) Investors prefer stocks that grow steadily. In that case, what values are ideal for the mean and SD of the returns? For the coefficient of variation?
(e) It is common to find that stocks that have higher average return also tend to be more volatile, with larger swings in price. Is that true for these three stocks?
StocksStocks or shares are generally equity instruments that provide the largest source of raising funds in any public or private listed company's. The instruments are issued on a stock exchange from where a large number of general public who are willing...
Step by Step Answer:
Statistics For Business Decision Making And Analysis
ISBN: 9780134497167
3rd Edition
Authors: Robert A. Stine, Dean Foster