The average daily income of construction workers was RM45 for ten years ago. A random sample of 10 workers was taken and their current incomes were recorded in Table 1. The output of the analysis is provided in Figure 2. Table 1. The random sample of construction workers income. Daily incomes (RM) 50 39 52 55 28 61 64 46 75 43 One Sample t-test data: c(50, 39, 52, 55, 28, 61, 64, 46, 75, 43) t = 1.483, df = 9, p-value = 0.08611 alternative hypothesis: true mean is greater than 45 90 percent confidence interval: 45.42489 Inf sample estimates: mean of x 51.3 Figure 2. The output of the analysis a) Write the R command to produce the above output. (3 marks) b) At the 10% level of significance, is the test significant? Justify your answer. (3 marks) c) Conclude whether the mean income now is more than ten years ago