Answer:
T-test is any statistical hypothesis test in which the test statistic follows a Student's t distribution if the null hypothesis is supported.
[h,p,ci] = ttest(y2,0)% return 1 0.0018 ci =2.6280 7.0863
[h,p,ci] = ttest(y2,0)% return 1 0.0018 ci =2.6280 7.0863
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