A drugs manufacturer claims that the amount of paracetamol in tablets is 60mg. A sample of ten tablets is taken and the amount of paracetamol each Is recorded:

59.1, 59.7, 61.0, 59.1, 60.6, 68.9, 60.2, 58.6, 58.7, 58.9

Assuming that this sample came from an underlying normal population, test the claim at the 5% significance level that the amount of paracetamol is different from 60mg.