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# Specify the sample mean (x_bar), the sample standard deviation (s), the mean claimed in the null-hypothesis (mu_null), and the sample size (n) x_bar <- 62.1 s <- 13.46 mu_null <- 55 n <- 30 # Output the test statistic (x_bar - mu_null)/(s/sqrt(n))
[1] 2.889175
