an industrial supplier has shipped a truckload of teflon lubricant cartridges to an aerospace customer. The customer has been assured that the mean weight of these cartridges is in excess of the 14 ounces printed on each cartridge. To check this claim a sample of n=17 cartridges are randomly selected from the shipment and carefully weighed. The mean of the sample is 14.1 ounces with a standard deviation of .17 ounces. To determine whether the suppliers claim is true test it at the .05 level of significance