A study reports that recent college graduates from Connecticut face the highest average debt of $38,510 (forbes.com,
Question:
A study reports that recent college graduates from Connecticut face the highest average debt of $38,510 (forbes.com, September 18, 2019). A researcher from Pennsylvania wants to determine how recent undergraduates from that state fare. The accompanying file contains data on debt from 40 recent undergraduates. Assume that the population standard deviation is $5,000.
a. Construct the 95% confidence interval for the mean debt of all undergraduates from Pennsylvania.
b. Use the 95% confidence interval to determine if the debt of Pennsylvania undergraduates differs from that of Connecticut undergraduates.
| Debt |
| 24040 |
| 19153 |
| 26762 |
| 31923 |
| 31533 |
| 34207 |
| 14623 |
| 24370 |
| 31016 |
| 20107 |
| 22090 |
| 17089 |
| 16306 |
| 20653 |
| 21673 |
| 14951 |
| 22701 |
| 23521 |
| 26215 |
| 23714 |
| 23906 |
| 23690 |
| 32254 |
| 25115 |
| 24610 |
| 22975 |
| 35402 |
| 29869 |
| 37419 |
| 22266 |
| 33848 |
| 17479 |
| 28236 |
| 30052 |
| 35136 |
| 25118 |
| 22922 |
| 28917 |
| 23634 |
| 29329 |
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Related Book For 
Business Statistics Communicating With Numbers
ISBN: 9781260716306
4th Edition
Authors: Sanjiv Jaggia, Alison Kelly
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