A local restaurant advertises that an average of 16 ounces of passion fruit juice is used to fill each bottle. A customer believes that bottles are being under-filled. So he takes a random sample of 48 bottles, and finds the sample mean of 15.8 ounces with a standard deviation of 0.8 ounces. Conduct a hypothesis test to test whether wehave strong evidence to support the customer's claim? Use 1% level of significance level.