null device 1 One Sample t-test data: Rmean t = 448.21, df = 365, p-value < 2.2e-16 alternative hypothesis: true mean is not equal to 0 95 percent confidence interval: 24.51943 24.73553 sample estimates: mean of x 24.62748 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 = 0.90142, p-value = 1.139e-14 $stats 30 75 117 195 231 22.68235 23.60000 24.80646 25.60588 26.14706 $n [1] 366 $conf [1] 24.64080 24.97212 $out named numeric(0) null device 1 null device 1 null device 1 null device 1 One Sample t-test data: Rmean t = 448.21, df = 365, p-value < 2.2e-16 alternative hypothesis: true mean is not equal to 0 95 percent confidence interval: 24.51943 24.73553 sample estimates: mean of x 24.62748 null device 1