Assume that the mid-upper arm circumference in a population of rural Indian children aged 12 to 60 months follows a Normal distribution with unknown mean, m. Ten samples each of four children are drawn from this population by a formal process of random sampling with replacement. The results are shown in Table 6.5.

(a) Calculate the sample mean and standard deviation for random sample number 10.

(b) Display the sample means on a dot plot.

(c) Calculate the standard error of the mean using the standard deviation, s, of random sample number 10 in Table 6.5.