Pepsi Corps beverage can manufacturing plant in Appleton, Wisconsin, uses a metal supplier that provides a metal with a known thickness standard deviation o= .000780 mm. Assume a random sample of 49 sheets of metal resulted in an x=. 1503 mm.

Calculate the 99 percent confidence interval for the true mean metal thickness. Round answer 4 decimal places.

The 99% confidence interval is from _____ to _____