10.50 A NSW Department of Consumer Affairs officer responsible for enforcing laws concerning weights and measures routinely inspects containers to

10.50 A NSW Department of Consumer Affairs officer responsible for enforcing laws concerning weights and measures routinely inspects containers to determine if the contents of 10 kg bags of potatoes weigh at least 10 kg as advertised on the container. A random sample of 25 bags whose container claims that the net weight is 10 kg yielded the following statistics: 10.51 X = 10.52 s 2 = 1.43 Estimate with 95% confidence the mean weight of a bag of potatoes. Assume that the weights of 10kg bags of potatoes are normally distributed.