Use the data file A2Q2.xlsx to answer this question. A sample containing years to maturity and yield for 40 corporate bonds is contained in the file A2Q2.xlsx. A. What is the sample mean yield on corporate bonds and what is the sample standard deviation? B. Develop a 95% confidence interval for the population mean yield on corporate bonds. Company Ticker Years to Maturity Yield HSBC 12.00 4.079 GS 9.75 5.367 C 4.75 3.332 MS 9.25 5.798 C 9.75 4.814 TOTAL 5.00 2.069 MS 5.00 4.739 WFC 10.00 3.682 TOTAL 10.00 3.270 TOTAL 3.25 1.748 BAC 9.75 4.009 RABOBK 9.75 3.203 GS 9.25 5.755 AXP 5.00 2.181 MTNA 5.00 4.366 MTNA 10.00 6.046 JPM 8.25 2.310 GE 28.00 5.030 LNC 10.00 4.163 BAC 8.00 3.699 FCX 15.00 4.030 GS 25.50 6.013 RABOBK 4.75 2.755 GE 24.75 5.008 HCN 8.00 4.184 GE 11.50 3.778 VOD 5.00 1.855 NEM 12.00 3.866 GE 1.00 0.767 C 29.75 8.004 SHBASS 5.00 2.261 PAA 10.25 3.856 GS 5.75 3.558 TOTAL 1.75 1.378 MS 6.00 3.413 WFC 1.75 1.797 AIG 5.00 3.452 BAC 29.75 4.000 MS 2.00 1.016 T 28.50 4.930

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.