please help A sample containing years to maturity and...
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A sample containing years to maturity and yield for 40 corporate bonds is contained in the Excel Online file below. Construct a spreadsheet to answer the following questions. Open spreadsheet a. What is the sample mean years to maturity for corporate bonds and what is the sample standard deviation? Mean (to 4 decimals) Standard deviation (to 4 decimals) b. Develop a 95% confidence interval for the population mean years to maturity. Please round the answer to four decimal places. ) years c. What is the sample mean yield on corporate bonds and what is the sample standard deviation? Mean (to 4 decimals) Standard deviation (to 4 decimals) d. Develop a 95% confidence interval for the population mean yield on corporate bonds. Please round the answer to four decimal places. Caiculation Mode: Automatic Workbook Statistics
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