Apply statistical tests on multiple datasets for two methods comparison

I want to apply paired t-test test on the accuracy results from two classifiers on multiple datasets, to determine if the differences are significant. so the accuracy results for the 2 classifiers are x = [97.09 77.72 80.32 77.33 81.77 95.58 92.13] y = [96.2 72.4 77.5 74.6 88.98 92.7 72.4] I did the test on Matlab using the command [h,p] = ttest(x,y,'Alpha',0.05) but the hypothesis failed to reject and give me h=0 and p= 0.2493 there is a clear difference between the two classifiers why it is rejected?