r=[6.0,5.7,5.8,6.5,7.0,6.3,5.6,6.1,5.0];[mu,sigma,muci,sigmaci]=normfit(r,0.05)mu =6sigma =0.5745muci =5.55846.4416sigmaci =0.38801.1005muci和sigmaci分别为mu和sigma的95%的置信区间
