Statistical Methods for Agricultural Experimental Data——Grubbs test and Variance analysis and Multiple comparison (LSD) by Excel

A Test Analysis Method Based on Grubbs in Experiments;

Given σ,the population standard deviation, is unknown, the sequence for the five tests arranged in priority order goes like t test, Grubbs test, peakness test, Dixion test, skewness test.

Under the condition that the two tests have same probability of making error of the first kind (seeing true the as the false),the probability for t test to make error of the second kind(seeing the false as the true),is lower,namely t test excels Grubbs test in inspection function.

By using Cobb-Douglas utility function to construct a price function,the fairness of resource utilization in different load condition was achieved,while guaran.

Based on the model of current enterprise manager annual salary system in China and the traditional principal-agent theory,it utilizes the structural character and economic identity of Cobb-Douglas production function and brings in the corresponding incentive mechanism to establish a principal-agent model of manager annual salary system which is suitable for the constant developing enterprise.