Statistical Techniques in Business and Economics
18th Edition
ISBN: 9781260579611
Author: Douglas Lind; William Marchal; Samuel Wathen
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Chapter 3, Problem 44E
a.
To determine
Find the arithmetic mean return.
b.
To determine
Find the variance.
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A stock has monthly returns of 9%, 22%, 15%, and 28%. What is the stock's geometric average
return?
To analyze the risk, or volatility, associated with investing in General Electric common stock, consider a sample of the eight quarterly percent
total returns. The percent total return includes the stock price change plus the dividend payment for the quarter.
Excel File: data11-06.xlsx
20.0 -20.5 12.2 12.6 10.5 -5.8 -18.7 15.3
a. What is the value of the sample mean (to 1 decimal)?
What is its interpretation?
This is the estimate of the-Select your answer-mean percent total return per quarter for General Electric.
b. Compute the sample variance and sample standard deviation as measures of volatility for the quarterly return for General Electric (to 2
decimals).
Variance:
Standard deviation:
c. Construct a 95% confidence interval for the population variance (to 2 decimals). Use Table 11.1.
sots
d. Construct a 95% confidence interval for the population standard deviation (to 2 decimals). Use Table 11.1.
sos
ReadSpeaker
To analyze the risk, or volatility, associated with investing in General Electric common stock, consider a sample of the eight quarterly percent total returns. The percent total return includes the stock price change plus the dividend
payment for the quarter.
Excel File: data11-06.xlsx
20.0
-20,5
12.2
12.6
10.5
-5.8
-18.7
15.3
a. What is the value of the sample mean (to 1 decimal)?
What is its interpretation?
This is the estimate of the
Select your answer
v mean percent total return per quarter for General Electric.
b. Compute the sample variance and sample standard deviation as measures of volatility for the quarterly return for General Electric (to 2 decimals).
Variance:
Standard deviation:
c. Construct a 95% confidence interval for the population variance (to 2 decimals). Use Table 11.1.
d. Construct a 95% confidence interval for the population standard deviation (to 2 decimals). Use Table 11.1.
Chapter 3 Solutions
Statistical Techniques in Business and Economics
Ch. 3 - The annual incomes of a sample of...Ch. 3 - The six students in Computer Science 411 are a...Ch. 3 - Compute the mean of the following population...Ch. 3 - Compute the mean of the following population...Ch. 3 - a. Compute the mean of the following sample...Ch. 3 - a. Compute the mean of the following sample...Ch. 3 - Compute the mean of the following sample values:...Ch. 3 - Suppose you go to the grocery store and spend...Ch. 3 - For Exercises 710, (a) compute the arithmetic mean...Ch. 3 - For Exercises 710, (a) compute the arithmetic mean...
Ch. 3 - For Exercises 710, (a) compute the arithmetic mean...Ch. 3 - For Exercises 710, (a) compute the arithmetic mean...Ch. 3 - Prob. 11ECh. 3 - Prob. 12ECh. 3 - Prob. 2.1SRCh. 3 - Prob. 2.2SRCh. 3 - Prob. 13ECh. 3 - Prob. 14ECh. 3 - Prob. 15ECh. 3 - Prob. 16ECh. 3 - Prob. 17ECh. 3 - Prob. 18ECh. 3 - Prob. 19ECh. 3 - Prob. 20ECh. 3 - Prob. 3SRCh. 3 - Prob. 21ECh. 3 - Prob. 22ECh. 3 - Prob. 4SRCh. 3 - Prob. 23ECh. 3 - Prob. 24ECh. 3 - Prob. 25ECh. 3 - Prob. 26ECh. 3 - Prob. 5.1SRCh. 3 - Prob. 5.2SRCh. 3 - Compute the geometric mean of the following...Ch. 3 - Prob. 28ECh. 3 - Listed below is the percent increase in sales for...Ch. 3 - Prob. 30ECh. 3 - Prob. 31ECh. 3 - Prob. 32ECh. 3 - Prob. 33ECh. 3 - Prob. 34ECh. 3 - Prob. 6SRCh. 3 - Prob. 35ECh. 3 - Prob. 36ECh. 3 - Prob. 37ECh. 3 - Prob. 38ECh. 3 - Prob. 39ECh. 3 - Prob. 40ECh. 3 - Prob. 7SRCh. 3 - Prob. 41ECh. 3 - Prob. 42ECh. 3 - Prob. 43ECh. 3 - Prob. 44ECh. 3 - Plywood Inc. reported these returns on stockholder...Ch. 3 - Prob. 46ECh. 3 - Prob. 8SRCh. 3 - Prob. 47ECh. 3 - Prob. 48ECh. 3 - Prob. 49ECh. 3 - Prob. 50ECh. 3 - Prob. 51ECh. 3 - Prob. 52ECh. 3 - Prob. 9SRCh. 3 - Prob. 53ECh. 3 - The mean income of a group of sample observations...Ch. 3 - Prob. 55ECh. 3 - Prob. 56ECh. 3 - Prob. 10SRCh. 3 - Prob. 57ECh. 3 - Prob. 58ECh. 3 - Prob. 59ECh. 3 - Prob. 60ECh. 3 - The IRS was interested in the number of individual...Ch. 3 - Prob. 62ECh. 3 - Prob. 63CECh. 3 - Prob. 64CECh. 3 - Prob. 65CECh. 3 - Prob. 66CECh. 3 - Prob. 67CECh. 3 - Prob. 68CECh. 3 - Prob. 69CECh. 3 - Prob. 70CECh. 3 - Prob. 71CECh. 3 - Prob. 72CECh. 3 - Prob. 73CECh. 3 - A recent article suggested that, if you earn...Ch. 3 - Prob. 75CECh. 3 - Prob. 76CECh. 3 - Prob. 77CECh. 3 - Prob. 78CECh. 3 - The Apollo space program lasted from 1967 until...Ch. 3 - Prob. 80CECh. 3 - Prob. 81CECh. 3 - Prob. 82CECh. 3 - Prob. 83CECh. 3 - Prob. 84CECh. 3 - Bidwell Electronics Inc. recently surveyed a...Ch. 3 - Refer to the North Valley Real Estate data and...Ch. 3 - Prob. 87DACh. 3 - Refer to the Lincolnville School District bus...
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