. The production line for AGlow toothpaste is designed to fill tubes with a mean weight of 6 oz. Periodically, a sample of 30 tubes will be selected in order to check the filling process. Quality assurance procedures call for the continuation of the filling process if the sample results are consistent with the assumption that the mean filling weight for the population of toothpaste tubes is 6 oz.; otherwise, the process will be adjusted.

Assume that a sample of 30 toothpaste tubes provides a sample mean of 6.11 oz. The population standard deviation is believed to be 0.215 oz. Perform a hypothesis test, at the 0.10 level of significance, to help determine whether the filling process should continue operating or be adjusted.