A sample of years to maturity and yield for 40 corporate bonds taken from Barron's is given below. Years to Maturity 4.25 Years to Maturity 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 29.25 18.75 9.00 23.50 14.25 21.75 16.25 17.00 25.75 15.00 25.25 9.50 a. What is the sample mean years to maturity for corporate bonds and what is the sample standard deviation? Mean Standard deviation 19.00 2.75 5.75 2.25 27.25 6.75 15.25 3.50 5.00 24.25 11.75 12.25 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. 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 Mean Yield 1.129 1.195 2.577 4.340 Standard deviation 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 years c. What is the sample mean yield on corporate bonds and what is the sample standard deviation? % (to 4 decimals) % (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

MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
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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
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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