null device 1 One Sample t-test data: Rmean t = 608.58, df = 365, p-value < 2.2e-16 alternative hypothesis: true mean is not equal to 0 95 percent confidence interval: 30.47252 30.67009 sample estimates: mean of x 30.57131 null device 1 One-sample Kolmogorov-Smirnov test data: Rmean D = 1, p-value < 2.2e-16 alternative hypothesis: two-sided Shapiro-Wilk normality test data: Rmean W = 0.94766, p-value = 4.3e-10 $stats 2 334 200 299 249 28.77059 29.70588 30.81471 31.27059 32.39412 $n [1] 366 $conf [1] 30.68548 30.94393 $out named numeric(0) null device 1 null device 1 null device 1 null device 1 One Sample t-test data: Rmean t = 608.58, df = 365, p-value < 2.2e-16 alternative hypothesis: true mean is not equal to 0 95 percent confidence interval: 30.47252 30.67009 sample estimates: mean of x 30.57131 null device 1