A study reports that recent college graduates from New Hampshire face the highest average debt of $31,008. A researcher Connecticut wants to determine how recent undergrad's from the state fare. He collects data on a debt from 40 recent undergraduates. A portion of the data is shown in the accompanying table. Assume that the population standard deviation is $5,100.
A) construct the 95% confidence interval fro the mean debt of all undergrad's from Connecticut. ( do not round intermediate calculations round z value to 3 decimal places and final answers to 2 decimal places)
B) use the 95% confidence interval to determine of the debt of Connecuicut undergrad's differs fro that of new Hampshire undergrad's is it
- a) the debt of connecticut undergrad's differs from the of New Hampshire undergrad's OR
-b) The debt of connecticut undergrad's does not differ from that of new hampshire undergrad"?
Debt | Debt |
24040 | 26214 |
19155 | 23718 |
26765 | 24036 |
31922 | 19159 |
31532 | 26764 |
34212 | 31921 |
14624 | 31531 |
24366 | 34212 |
31016 | 14629 |
20110 | 29866 |
22088 | 37413 |
17093 | 22269 |
16307 | 28232 |
20656 | 30049 |
21671 | 35139 |
14951 | 25120 |
21675 | 22922 |
14952 | 28918 |
22705 | 23639 |
23520 | 29329 |
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