Suppose that the compression-strength observations on the fourth type of box in Example...

Suppose that the compression-strength observations on the fourth type of box in Example 10.1 had been 655.1, 748.7, 662.4, 679.0, 706.9, and 640.0 (obtained by adding 120 to each previous ). Assuming no change in the remaining observations, carry out an F test with α = .05 .