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Probability that it takes at least 1.5 hours of machining time to produce a randomly selected item is 0.0000
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Problem 3: 14 points) Manufacture of a certain component requires three different machining operations. Machining time...
Problem 3: [4 points) Manufacture of a certain component requires three different machining operations. Machining time...
Problem 3: [4 points) Manufacture of a certain component requires three different machining operations. Machining time for each operation is normally distributed and the three times are independent of one another. The mean values are 15, 30, and 20 minutes respectively. Their standard deviations are 1, 2, and 1.5 minutes respectively. What is the probability that it takes at least 1.5 hour of machining time to produce a randomly selected item?
Problem 3: [4 points) Manufacture of a certain component requires three different machining operations. Machining time...
Problem 3: [4 points) Manufacture of a certain component requires three different machining operations. Machining time for each operation is normally distributed and the three times are independent of one another. The mean values are 15, 30, and 20 minutes respectively. Their standard deviations are 1, 2, and 1.5 minutes respectively. What is the probability that it takes at least 1 hour of machining time to produce a randomly selected item?
Problem 3: [4 points) Manufacture of a certain component requires three different machining operations. Machining time...
Problem 3: [4 points) Manufacture of a certain component requires three different machining operations. Machining time for each operation is normally distributed and the three times are independent of one another. The mean values are 15, 30, and 20 minutes respectively. Their standard deviations are 1, 2, and 1.5 minutes respectively. What is the probability that it takes at least 1 hour of machining time to produce a randomly selected item?
Manufacture of a certain component requires three different machining operations. The amount of time each operation...
Manufacture of a certain component requires three different machining operations. The amount of time each operation requires (operation time) is normally distributed with mean 10 and variance 4. The three operation times are independent. Referring to the previous manufacturing example, now suppose that the cost for the first machining operation is $1 per minute. That for the second and third operations are $2 per minute and $3 per minute, respectively. What is the probability that total cost for making the...
The time required to assemble an electronic component is normally distributed with a mean and a...
The time required to assemble an electronic component is normally distributed with a mean and a standard deviation of 21 minutes and 10 minutes, respectively. [You may find it useful to reference the z table.] a. Find the probability that a randomly picked assembly takes between 13 and 22 minutes. (Round " value to 2 decimal places and final answer to 4 decimal places. Probability b. It is unusual for the assembly time to be above 35 minutes or below...
A car manufacturer has determined it takes an average time of 53 minutes to produce a...
A car manufacturer has determined it takes an average time of 53 minutes to produce a car. The population standard deviation is assumed to be 7 minutes. The company pays a bonus to the workers for every car produced in 45 minutes or less. Assuming that the production time is normally distributed, answer the following questions. Let X = production time of a randomly selected car. (Round probabilities to four decimals and times to two decimals.) a) What is the...
A car manufacturer has determined it takes an average time of 58 minutes to produce a...
A car manufacturer has determined it takes an average time of 58 minutes to produce a car. The population standard deviation is assumed to be 7 minutes. The company pays a bonus to the workers for every car produced in 49 minutes or less. Assuming that the production time is normally distributed, answer the following questions. Let X = production time of a randomly selected car. (Round all probabilities to four decimals and times to two decimals) a) What is...
A car manufacturer has determined it takes an average time of 51 minutes to produce a...
A car manufacturer has determined it takes an average time of 51 minutes to produce a car. The population standard deviation is assumed to be 7 minutes. The company pays a bonus to the workers for every car produced in 43 minutes or less. Assuming that the production time is normally distributed, answer the following questions. Let X- production time of a randomly selected car. (Round probabilities to four decimals and times to two decimals.) a) What is the probability...
At an auto parts place, the inspection time for a vehicle is approximately normally distributed with...
At an auto parts place, the inspection time for a vehicle is approximately normally distributed with the mean 30 minutes and the standard deviation 2 minutes. 1. What is the probability that a randomly selected car’s inspection time is between 25 minutes and 33 minutes? Round your answer to three decimal places. 2. The owner of this auto parts place will give a gift card to a customer if his car takes more 95% of inspection times. What is the...
(a) A company can manufacture a certain component from bar stock using an automatic lathe. The...
(a) A company can manufacture a certain component from bar stock using an automatic lathe. The breakdown of costs is as follows: Cost of automatic lathe Tooling cost for component Setting up time Tool setter's rate Machine operator's rate Time to produce one component Cost of material per component General overheads (excluding $180,000.00 $ 2,000.00 10 hours $18.00 per hour $6.00 per hour 3 minutes $1.50 $15.00 per hour depreciation) Assume straight-line depreciation of the lathe over a period of...
Problem 3: [4 points) Manufacture of a certain component requires three different machining operations. Machining time for each operation is normally distributed and the three times are independent of one another. The mean values are 15, 30, and 20 minutes respectively. Their standard deviations are 1, 2, and 1.5 minutes respectively. What is the probability that it takes at least 1.5 hour of machining time to produce a randomly selected item?
Problem 3: [4 points) Manufacture of a certain component requires three different machining operations. Machining time for each operation is normally distributed and the three times are independent of one another. The mean values are 15, 30, and 20 minutes respectively. Their standard deviations are 1, 2, and 1.5 minutes respectively. What is the probability that it takes at least 1 hour of machining time to produce a randomly selected item?
Problem 3: [4 points) Manufacture of a certain component requires three different machining operations. Machining time for each operation is normally distributed and the three times are independent of one another. The mean values are 15, 30, and 20 minutes respectively. Their standard deviations are 1, 2, and 1.5 minutes respectively. What is the probability that it takes at least 1 hour of machining time to produce a randomly selected item?
The time required to assemble an electronic component is normally distributed with a mean and a standard deviation of 21 minutes and 10 minutes, respectively. [You may find it useful to reference the z table.] a. Find the probability that a randomly picked assembly takes between 13 and 22 minutes. (Round " value to 2 decimal places and final answer to 4 decimal places. Probability b. It is unusual for the assembly time to be above 35 minutes or below...
A car manufacturer has determined it takes an average time of 51 minutes to produce a car. The population standard deviation is assumed to be 7 minutes. The company pays a bonus to the workers for every car produced in 43 minutes or less. Assuming that the production time is normally distributed, answer the following questions. Let X- production time of a randomly selected car. (Round probabilities to four decimals and times to two decimals.) a) What is the probability...
(a) A company can manufacture a certain component from bar stock using an automatic lathe. The breakdown of costs is as follows: Cost of automatic lathe Tooling cost for component Setting up time Tool setter's rate Machine operator's rate Time to produce one component Cost of material per component General overheads (excluding $180,000.00 $ 2,000.00 10 hours $18.00 per hour $6.00 per hour 3 minutes $1.50 $15.00 per hour depreciation) Assume straight-line depreciation of the lathe over a period of...
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