You have ordered 10 bags of cement, which are supposed to weigh 94 kg
each. The average weight of the 10 bags is 93.5 kg. Assuming that the 10
weights can be viewed as a realization of a random sample from a normal
distribution with unknown parameters, construct a 95% confidence interval
for the expected weight of a bag. The sample standard deviation of the 10
weights is 0.75.
Calculate the condence interval in R, and write the code you used.