StatsPharm fall 2020: exercises for retake exams

Assistant work/StatsPharm/Retake exams/Ex3.m

+X1=[15.5,14.7,13.8,17.0,16.5,15.5,17.0,16.4,14.8];
+X2=[14.6,13.0,14.5,16.9,14.1,15.6,16.9,16.6,14.8];
+
+D=X2-X1;
+mu=mean(D);
+sigma=std(D);
+T=mu*sqrt(9)/sigma;
+
+disp(['mean: ', num2str(mu)])
+disp(['std: ', num2str(sigma)])
+disp(['test: ', num2str(T)])

Assistant work/StatsPharm/Retake exams/Ex4.m

+y=[91;94;82;88;81;81;82]; X=[ones(7,1),(1:7)'];
+alpha=(X'*X) \ (X'*y);
+
+disp(['intercept: ',num2str(alpha(1))]);
+disp(['slope: ',num2str(alpha(2))]);
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