MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Transcribed Image Text:A sample of years to maturity and yield for 40 corporate bonds taken from Barron's is given below.
Years to
Maturity
Years to
Maturity
4.25
7.75
13.25
28.25
26.50
17.50
20.50
22.25
5.00
10.00
7.50
19.75
29.75
23.00
1.25
10.75
19.00
29.25
2.75
18.75
5.75
9.00
2.25
23.50
27.25
14.25
6.75
21.75
15.25
16.25
3.50
17.00
5.00
25.75
24.25
15.00
11.75
25.25
12.25
9.50
a. What is the sample mean years to maturity for corporate bonds and what is the sample standard deviation?
Mean
years (to 2 decimals)
years (to 2 decimals)
b. Develop a 95% confidence interval for the population mean years to maturity. Round the answer to two decimal places.
Standard deviation
Yield
4.152
4.509
7.048
5.086
1.157
4.148
2.894
5.435
1.139
2.886
1.584
7.929
5.945
3.725
4.695
3.972
4.214
2.811
7.936
2.208
years
Yield
1.129
1.195
2.577
4.340
7.858
6.216
2.521
1.016
5.415
5.228
2.938
2.257
6.001
3.513
1.990
5.763
2.727
7.690
5.989
4.177
Mean
c. What is the sample mean yield on corporate bonds and what is the sample standard deviation?
% (to 4 decimals)
Standard deviation
% (to 4 decimals)
d. Develop a 95% confidence interval for the population mean yield on corporate bonds. Round the answer to four decimal places.
) percent
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