A sample of 12 Maxfli XS golf balls have an average diameter of 1.681 inches with a standard deviation of 0.004 inches . Assuming we have Normal data, test the claim that the mean diameter of all...

A sample of 12 Maxfli XS golf balls have an average diameter of 1.681 inches with a standard deviation of 0.004 inches . Assuming we have Normal data, test the claim that the mean diameter of all Maxfli XS golf balls equals to 1.68 inches which is the standard set by the Golf Association ). Use alpha = 0.10 as the significance level.