In the study An Evaluation of the Removal Method for Estimating Benthic Populations and Diversity conducted by the Virginia Polytechnic Institute and State University on the Jackson River, 5 different sampling procedures were used to determine the species count. Twenty samples were selected at random and each of the 5 sampling procedures were repeated 4 times. The species counts were recorded as follows:

(a) Is there a significant difference in the average species count for the different sampling procedures? Use a P-value in your conclusion.
(b) Use Tukey's test with a = 0.05 to find which sampling procedures differ.

Sampling Procedure Substrate Removal Kick tion Hss Surber Kickne net 17 10 Deple- Modified 31 20 45 35 67 43 21 15 27 40 37 15