A series of experiments is conducted, and the coefficient of friction between a shaft and bearing

A series of experiments is conducted, and the coefficient of friction μ between a shaft and bearing is computed. Tests are run using six different lubricants, with four measurements of μ for each lubricant.

At the 1% level of significance, can we conclude that any of the lubricants are more effective in reducing friction? If so, which ones?

Lubricant 1 0.0105 0.0082 0.0076 0.0093 Lubricant 2 0.0074 0.0110 0.0086 0.0077 Lubricant 3 0.0062 0.0073 0.0059 0.0068 Lubricant 4 0.0107 0.0113 0.0094 0.0098 Lubricant 5 0.0052 0.0075 0.0064 0.0071 Lubricant 6 0.0083 0.0066 0.0080 0.0058