MATLAB: An Introduction with Applications
5th Edition
ISBN: 9781118629864
Author: Amos Gilat
Publisher: WILEY
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Textbook Question
Chapter 4, Problem 2P
The monthly saving P that has to be deposit in a saving account that pays an annual interest rate of r in order to save a total amount of Fin N years can be calculated by the formula:
Calculate the monthly saving that has to be deposit in order to save $100,000 in 5, 6, 7, 8, 9, and 10 years if the annual interest rate is 4.35%. Display the results in a two-column table where the first column is the number of years and the second column is the monthly deposit
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Morningstar tracks the total return for a large number of mutual funds. The following table shows the total return and the number of funds for four categories of mutual funds.
Click on the datafile logo to reference the data.
DATA file
Type of Fund
Domestic Equity
Number of Funds
Total Return (%)
9191
4.65
International Equity
2621
18.15
Hybrid
1419
2900
11.36
6.75
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a. Using the number of funds as weights, compute the weighted average total return for these mutual funds. (to 2 decimals)
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b. Is there any difficulty associated with using the "number of funds" as the weights in computing the weighted average total return in part (a)? Discuss. What else might be used for weights?
The input in the box below will not be graded, but may be reviewed and considered by your instructor.
c. Suppose you invested $10,000 in this group of mutual funds and diversified the investment by placing $2000 in Domestic Equity funds, $4000 in International Equity funds, $3000 in Specialty Stock…
The days to maturity for a sample of five money market funds are shown here. The dollar amounts invested in the funds are provided.
Days to
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20
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($ millions)
20
12
30
7
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5
6
15
10
Use the weighted mean to determine the mean number of days to maturity for dollars invested in these five money market funds (to 1 decimal).
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Which companies spend the most money on advertising? Business Insider maintains a list of the top-spending companies. In 2014, Procter & Gamble spent more than any other company, a whopping $5 billion. In second place was Comcast, which spent $3.08 billion (Business Insider website, December 2014). The top 12 companies and
the amount each spent on advertising in billions of dollars are as follows.
Click on the datafile logo to reference the data.
DATA file
Company
Procter & Gamble
Comcast
Advertising
($billions)
$5.00
3.08
2.91
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American Express
General Motors
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ETET
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Toyota
Fiat Chrysler
Walt Disney Company
J.P Morgan
a. What is the mean amount spent on advertising? (to 2 decimals)
2.55
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2.09
1.97
1.96
1.88
Chapter 4 Solutions
MATLAB: An Introduction with Applications
Ch. 4 - Prob. 1PCh. 4 - The monthly saving P that has to be deposit in a...Ch. 4 - Prob. 3PCh. 4 - The volume V and the surface area S of a...Ch. 4 - Prob. 5PCh. 4 - Prob. 6PCh. 4 -
7. A rocket flying straight up measures the...Ch. 4 - Prob. 8PCh. 4 - Prob. 9PCh. 4 - The balance of a loan, B, after n monthly payments...
Ch. 4 - Early explorers often estimated altitude by...Ch. 4 - An isosceles triangle sign is designed to have a...Ch. 4 - 13. A round billboard with radius R — 55 in. is...Ch. 4 - Prob. 14PCh. 4 - Prob. 15PCh. 4 - Prob. 16PCh. 4 - Prob. 17PCh. 4 - The intrinsic electrical conductivity a of a...Ch. 4 - Prob. 19PCh. 4 - The net heat exchange by radiation from plate 1...Ch. 4 - Prob. 21PCh. 4 - Prob. 22PCh. 4 - Prob. 23PCh. 4 - Prob. 24PCh. 4 - The surface of many airfoils can be described with...Ch. 4 - During a golf match, a certain number of points...Ch. 4 - The dissolution of copper sulfide in aqueous...Ch. 4 - 28. The wind chill temperature, 7WC, is the air...Ch. 4 - Prob. 29P
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