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I cant figure out the t-value and the z-value for this problem, My textbook's z-card is wrong! 16. A sample of 20 international students attending
I cant figure out the t-value and the z-value for this problem, My textbook's z-card is wrong!
| 16. A sample of 20 international students attending an urban U.S. university found that the average amount budgeted for expenses per month was $1,612.50 with a standard deviation of $1,179.64. Find a 95% confidence interval for the mean monthly expense budget of the population of international students. Use the appropriate formula and verify your result using the Confidence Intervals workbook. | |||||||||
| Expense Budget | |||||||||
| Confidence Interval for Population Mean, Standard Deviation Unknown | |||||||||
| Alpha | 0.05 | ||||||||
| Sample standard deviation | 1179.64 | ||||||||
| Sample size | 20 | ||||||||
| Sample average | 1612.5 | ||||||||
| Confidence Interval | |||||||||
| t-value | |||||||||
| Error | |||||||||
| Lower | |||||||||
| Upper |
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An Introduction to the Mathematics of Financial Derivatives
Authors: Ali Hirsa, Salih N. Neftci
3rd edition
012384682X, 978-0123846822
