Acoin-operated drink machine was designed to discharge a mean of 6 ounces of coffee per cup. in a test of the machine, the discharge amounts in 20 randomly chosen cups of coffee from the machine were recorded. the sample mean and sample standard deviation were 6.13 ounces and 0.23 ounces, respectively. if we assume that the discharge amounts are normally distributed, is there enough evidence, at the 0.05 level of significance, to conclude that the true mean discharge, differs from 6 ounces?

Which description is represented by a discrete graph? kiley bought a platter for $19 and several matching bowls that were $8 each. what is the total cost before tax? the temperature at 9 a. m. was 83° f and is heating up at an average rate of 6°f per hour. what is the temperature x hours later? juan ate an egg with 78 calories and some cereal with 110 calories per serving for breakfast. what is the total amount of calories he consumed? a bottle contained 2,000 ml of liquid and is being poured out at an average rate of 300 ml per second. how much liquid is left in the bottle after x seconds?