Research Methods for the Behavioral Sciences
5th Edition
ISBN: 9780357231913
Author: Frederick J Gravetter; Lori-Ann B. Forzano
Publisher: Cengage Limited
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Chapter 1.3, Problem 7LO
To determine
To explain:
The distinction between the hypothesis and prediction
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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
Specialty Stock
a. Using the number of funds as weights, compute the weighted average total return for these mutual funds. (to 2 decimals)
%
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?
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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, $3000 in Specialty Stock…
The days to maturity for a sample of five money market funds are shown here. The dollar amounts invested in the funds are provided.
Days to
Maturity
20
Dollar Value
($ millions)
20
12
30
7
10
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).
days
c. What are the first and third quartiles?
First Quartiles (to 1 decimals)
Third Quartiles (to 4 decimals)
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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)
$5.00
3.08
2.91
Company
American Express
General Motors
Advertising
($billions)
$2.19
2.15
ETET
AT&T
Ford
Verizon
L'Oreal
2.56
2.44
2.34
Toyota
Fiat Chrysler
Walt Disney Company
J.P Morgan
a. What is the mean amount spent on advertising? (to 2 decimals)
2.55
b. What is the median amount spent on advertising? (to 3 decimals)
2.09
1.97
1.96
1.88
Chapter 1 Solutions
Research Methods for the Behavioral Sciences
Ch. 1.2 - Describe tenacity and intuition as methods of...Ch. 1.2 - Describe and identify an example of the method of...Ch. 1.2 - Describe and identify an example of the rational...Ch. 1.2 - Describe and identify an example of the empirical...Ch. 1.3 - Identify and describe the steps of the scientific...Ch. 1.3 - Prob. 6LOCh. 1.3 - Prob. 7LOCh. 1.3 - Prob. 8LOCh. 1.3 - Explain the distinction between science and...Ch. 1.4 - Describe the difference between qualitative and...
Ch. 1.4 - Identify and describe the steps in the research...Ch. 1 - In addition to the key words that were defined in...Ch. 1 - Describe how the cliche You can lead a horse to...Ch. 1 - Describe why you might be cautious about using the...Ch. 1 - Prob. 4ECh. 1 - Pessimists commonly claim that, if you drop a...Ch. 1 - What are the five steps of the scientific method?Ch. 1 - Describe the difference between inductive and...Ch. 1 - State a hypothesis that identifies a specific...Ch. 1 - Is the following hypothesis testable, refutable,...Ch. 1 - Describe what it means to say that science is...Ch. 1 - An expert appears on a shopping network to explain...Ch. 1 - A social science researcher would like to...Ch. 1 - Determine whether each of the following hypotheses...Ch. 1 - In this chapter, we identified a variety of...Ch. 1 - Prob. 2EA
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