Assignment:
The table contains the yield for a money market account, a one-year certificate of deposit (CD), and a five-year CD for 23 banks.
a) At the 0.05 level of significance, is there evidence of a difference in the mean yield of the different accounts?
b) If appropriate, determine which accounts differ in mean yields.
c) At the 0.05 level of significance, is there evidence of a difference in the variation in yields among the different accounts?
d) At the 0.05 level of significance, is there evidence of a difference in the median yields of the different account?
e) Compare the results of (a) with (d).
| Money Market |
One-Year CD |
Five-Year CD |
| 0.60 |
1.00 |
1.85 |
| 1.75 |
2.00 |
3.30 |
| 0.01 |
0.25 |
1.50 |
| 1.00 |
2.00 |
3.10 |
| 0.75 |
1.50 |
3.25 |
| 1.25 |
2.30 |
3.70 |
| 1.20 |
2.05 |
3.00 |
| 0.50 |
1.75 |
3.00 |
| 2.00 |
1.65 |
2.80 |
| 1.75 |
2.25 |
2.50 |
| 2.12 |
1.35 |
3.50 |
| 1.90 |
2.20 |
3.66 |
| 1.20 |
2.10 |
3.30 |
| 0.20 |
2.00 |
1.70 |
| 0.20 |
2.00 |
1.70 |
| 0.25 |
1.75 |
3.30 |
| 0.20 |
2.00 |
1.70 |
| 0.25 |
1.75 |
3.00 |
| 0.20 |
2.00 |
1.70 |
| 0.60 |
1.20 |
1.65 |
| 2.00 |
2.24 |
3.25 |
| 2.02 |
0.75 |
1.00 |
| 0.02 |
0.85 |
1.16 |