某校60名学生的一次考试成绩如下： 某校60名学生的一次考试成绩如下： (93 75 83 93 91 85 84 82 77 76 77 95 94 89 91 88 86 83 96 81 79 97 78 75 67 69 68 84 83 81 75 66 85 70 94 84 83 82 80 78 74 73 76 70 86 76 90 89 71 66 86 73 80 94 79 78 77 63 53 55 1)计算均值、标准差、极差、偏度、峰度，画出直方图；

Test whether the difference of two Sharpe ratios is statistically significant. No normality assumption needed, the bootstrap approach approximates the data-generating process.

生成正态性检验及界面,可进行完整的正态性检验-Normal test generation and interface, can be a complete test of normality

D Agostino-Pearson s K2 test for assessing normality of data.