A Coffee-Dispensing Machine Is Supposed to Deliver 8 Ounces of Liquid

Multiple Choice

A coffee-dispensing machine is supposed to deliver 8 ounces of liquid into each paper cup, but a consumer believes that the actual mean amount is less.The consumer obtained a sample of 49 cups of the dispensed liquid with average of 7.75 ounces.If the sample variance of the dispensed liquid per cup is 0.81 ounces, and α = 0.05, the p-value is approximately __________.

A) 0.05
B) 0.025
C) 0.06
D) 0.015
E) 0.10