A coffee dispensing machine is supposed to deliver 8 ounces of liquid into each paper cup,...
A coffee dispensing machine is supposed to deliver 8 ounces of liquid into each paper cup, but a consumer believes that the actual amount is less. As test he obtains a sample of 36 cups of the dispensed liquid and finds the mean content for his sample to be 7.5 ounces. If the machine operates with a standard deviation of 0.9 ounces, conduct a hypotheses test at a 0.05 level of significance as to the content of the coffee cup.
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A coffee dispensing machine is supposed to deliver 8 ounces of
liquid into each paper cup,...
A coin-operated coffee machine was designed to discharge 8 ounces of coffee per cup, in a...
A coin-operated coffee machine was designed to discharge 8 ounces of coffee per cup, in a test of the machine, 17 cupluls of coffee were drawn from the machine and measured. The number of ounces discharged for each of the cups is 7.9.7.76,773.775.8.14,8 15,786,788,7.67,8,8.12,813,784, 8.12, 8, 794.8.08 At the 0.02 level of significance, can we conclude (by using a sign test) that the median discharge of a cup of coffee from this machine differs from 8 ounces? Perform this hypothesis...
1. A vending machine that dispenses coffee into cups must fill the cups with 7.8 oz...
1. A vending machine that dispenses coffee into cups must fill the cups with 7.8 oz of liquid. Before selling the vending machine to a college or business, the company tests the machine to be sure it is dispensing an average amount of 7.8 oz of coffee. A sample of 20 amounts is shown here. Assume that the amount of coffee dispensed is normally distributed. 7.78 7.79 7.82 7.82 7.87 7.84 Ounces Dispensed 7.80 7.80 7.83 7.85 7.82 7.78 7.75...
A machine in the student lounge dispenses coffee. The average cup of coffee is supposed to contai...
A machine in the student lounge dispenses coffee. The average cup of coffee is supposed to contain 7.0 ounces. A random sample of eight cups of coffee from this machine show the average content to be 7.4 ounces with a standard deviation of 0.70 ounce. Do you think that the machine has slipped out of adjustment and that the average amount of coffee per cup is different from 7 ounces? Use a 5% level of significance. What are we testing...
A machine in the student lounge dispenses coffee. The average cup of coffee is supposed to...
A machine in the student lounge dispenses coffee. The average cup of coffee is supposed to contain 7.0 ounces. A random sample of eight cups of coffee from this machine show the average content to be 7.4 ounces with a standard deviation of 0.70 ounce. Do you think that the machine has slipped out of adjustment and that the average amount of coffee per cup is different from 7 ounces? Use a 5% level of significance. What are we testing...
A machine in the lodge at a ski resort dispenses a hot chocolate drink. The average...
A machine in the lodge at a ski resort dispenses a hot chocolate drink. The average cup of hot chocolate is supposed to contain u = 8 ounces. We may assume that x follows a normal distribution with standard deviation r = 0.3 ounces. A random sample of 16 cups of hot chocolate from this machine had a mean content of x bar = 7.5 ounces. Use a a = 0.05 level of significance and test whether the mean amount...
Problems 6 - 8: Suppose that the amount of coffee in each cup dispensed by a...
Problems 6 - 8: Suppose that the amount of coffee in each cup dispensed by a vending machine follows a normal distribution. A coffee vending machine is configured so that mean of all of the cups of coffee it dispenses is u = 12.0 ounces with a standard deviation o = 0.8 ounces. The mean of the distribution can be set by adjusting the filling machinery, while the standard deviation reflects the precision of the filling machinery. During a quality...
A coin-operated drink machine was designed to discharge a mean of 8 ounces of coffee per...
A coin-operated drink machine was designed to discharge a mean of 8 ounces of coffee per cup. In a test of the machine, the discharge amounts in 21 randomly chosen cups of coffee from the machine were recorded. The sample mean and sample standard deviation were 7.87 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, ?,...
A coin-operated drink machine was designed to discharge a mean of 8 ounces of coffee per...
A coin-operated drink machine was designed to discharge a mean of 8 ounces of coffee per cup. In a test of the machine, the discharge amounts in 14 randomly chosen cups of coffee from the machine were recorded. The sample mean and sample standard deviation were 8.02 ounces and 0 26 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,...
A coin-operated drink machine was designed to discharge a mean of 7 ounces of coffee per cup. In ...
A coin-operated drink machine was designed to discharge a mean of 7 ounces of coffee per cup. In a test of the machine, the discharge amounts in 21 randomly chosen cups of coffee from the machine were recorded. The sample mean and sample standard deviation were 6.84 ounces and 0.3 ounces, respectively. If we assume that the discharge amounts are normally_distributed, is there enough evidence, at the 0.1 level of significance, to conclude that the true mean discharge, μ, differs...
coffee machine can be adjusted to deliver any fixed number of ounces of coffee. If the...
coffee machine can be adjusted to deliver any fixed number of ounces of coffee. If the machine has a standard deviation in delivery equal to 0.2 ounce, what should be the mean setting so that an 8-ounce cup will overflow only 1.0% of the time? Question 9 options: 7.9 8.2 7.5 7.1
A coin-operated coffee machine was designed to discharge 8 ounces of coffee per cup, in a test of the machine, 17 cupluls of coffee were drawn from the machine and measured. The number of ounces discharged for each of the cups is 7.9.7.76,773.775.8.14,8 15,786,788,7.67,8,8.12,813,784, 8.12, 8, 794.8.08 At the 0.02 level of significance, can we conclude (by using a sign test) that the median discharge of a cup of coffee from this machine differs from 8 ounces? Perform this hypothesis...
1. A vending machine that dispenses coffee into cups must fill the cups with 7.8 oz of liquid. Before selling the vending machine to a college or business, the company tests the machine to be sure it is dispensing an average amount of 7.8 oz of coffee. A sample of 20 amounts is shown here. Assume that the amount of coffee dispensed is normally distributed. 7.78 7.79 7.82 7.82 7.87 7.84 Ounces Dispensed 7.80 7.80 7.83 7.85 7.82 7.78 7.75...
A machine in the student lounge dispenses coffee. The average cup of coffee is supposed to contain 7.0 ounces. A random sample of eight cups of coffee from this machine show the average content to be 7.4 ounces with a standard deviation of 0.70 ounce. Do you think that the machine has slipped out of adjustment and that the average amount of coffee per cup is different from 7 ounces? Use a 5% level of significance. What are we testing...
Problems 6 - 8: Suppose that the amount of coffee in each cup dispensed by a vending machine follows a normal distribution. A coffee vending machine is configured so that mean of all of the cups of coffee it dispenses is u = 12.0 ounces with a standard deviation o = 0.8 ounces. The mean of the distribution can be set by adjusting the filling machinery, while the standard deviation reflects the precision of the filling machinery. During a quality...
A coin-operated drink machine was designed to discharge a mean of 8 ounces of coffee per cup. In a test of the machine, the discharge amounts in 21 randomly chosen cups of coffee from the machine were recorded. The sample mean and sample standard deviation were 7.87 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, ?,...
A coin-operated drink machine was designed to discharge a mean of 8 ounces of coffee per cup. In a test of the machine, the discharge amounts in 14 randomly chosen cups of coffee from the machine were recorded. The sample mean and sample standard deviation were 8.02 ounces and 0 26 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,...
A coin-operated drink machine was designed to discharge a mean of 7 ounces of coffee per cup. In a test of the machine, the discharge amounts in 21 randomly chosen cups of coffee from the machine were recorded. The sample mean and sample standard deviation were 6.84 ounces and 0.3 ounces, respectively. If we assume that the discharge amounts are normally_distributed, is there enough evidence, at the 0.1 level of significance, to conclude that the true mean discharge, μ, differs...
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