According to an article in Risk, three Danish financial institutions recently offered new structured investment programs. Suppose that data, in percent return, for a random sample of investments offered by these banks, are as follows.

Bank 1: 8.5, 7.9, 8.3, 8.2, 8.2, 7.7, 8.1, 7.9

Bank 2: 6.8, 7.1, 6.6, 7.3, 7.5, 6.9, 7.7, 8.0

Bank 3: 5.9, 6.0, 6.1, 5.8, 7.3, 5.9, 6.5, 6.3

Conduct a test for equality of means and state your conclusions