how to perform a one-sample t-test in matlab

To perform a one-sample t-test in Matlab, you can use the ttest function.

Here's an example code snippet that demonstrates how to perform a one-sample t-test on a sample data:

main.m
% Sample data
data = [ 65.34, 62.70, 68.89, 61.54, 64.12, 70.01, 69.62, 67.79, 66.15, 68.92 ];

% Set the null hypothesis
null_mean = 70;

% Perform one-sample t-test
[h, p, ci, stats] = ttest(data, null_mean);

% Display results
disp(['t statistic = ', num2str(stats.tstat)]);
disp(['p-value = ', num2str(p)]);
if h==0
    disp('Null hypothesis cannot be rejected');
else
    disp('Null hypothesis is rejected');
end
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In the above code, the ttest function takes two arguments: the sample data, and the null hypothesis mean. The returned outputs are the t statistic, p-value, confidence interval, and other statistics related to the test.

Note that h is the output for the test decision (0 for "cannot reject null hypothesis" and 1 for "reject null hypothesis").