www.gusucode.com > stats 源码程序 matlab案例代码 > stats/OneSidedtTestExample.m
%% One-Sided t-Test %% % Load the sample data. Create a vector containing the first column of the % students’ exam grades data. load examgrades x = grades(:,1); %% % Test the null hypothesis that the data comes from a population with mean % equal to 65, against the alternative that the mean is greater than 65. h = ttest(x,65,'Tail','right') %% % The returned value of |h = 1| indicates that |ttest| rejects the null % hypothesis at the 5% significance level, in favor of the alternate hypothesis % that the data comes from a population with a mean greater than 65.