Suppose a batch of metal shafts produced in a manufacturing company have a standard deviation of...
Suppose a batch of metal shafts produced in a manufacturing company have a standard deviation of 1.3 and a mean diameter of 202 inches. If 70 shafts are sampled at random from the batch, what is the probability that the mean diameter of the sample shafts would be less than 201.9 inches? Round your answer to four decimal places.
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Suppose a batch of metal shafts produced in a manufacturing
company have a standard deviation of...
Suppose a batch of metal shafts produced in a manufacturing company have a standard deviation of...
Suppose a batch of metal shafts produced in a manufacturing company have a standard deviation of 1.3 and a mean diameter of 202 inches. If 70 shafts are sampled at random from the batch, what is the probability that the mean diameter of the sample shafts would be less than 201.9 inches? Round your answer to four decimal places.
Correct Suppose a batch of metal shafts produced in a manufacturing company have a standard deviation...
Correct Suppose a batch of metal shafts produced in a manufacturing company have a standard deviation of 1.4 and a mean diameter of 212 inches in r 80 shafts are sampled at random from the batch, what is the probability that the mean diameter of the sample shafts would differ from the population mean by greater than 0.1 inches? Round your answer to four decimal places How to enter your answer
Suppose a batch of metal shafts produced in a manufacturing company have a variance of 99...
Suppose a batch of metal shafts produced in a manufacturing company have a variance of 99 and a mean diameter of 207207 inches. If 7272 shafts are sampled at random from the batch, what is the probability that the mean diameter of the sample shafts would differ from the population mean by less than 0.30.3 inches? Round your answer to four decimal places.
Suppose a batch of steel rods produced at a steel plant have a mean length of...
Suppose a batch of steel rods produced at a steel plant have a mean length of 170 millimeters, and a standard deviation of 10 millimeters. If 299 rods are sampled at random from the batch, what is the probability that the mean length of the sample rods would differ from the population mean by less than 0.7 millimeters? Round your answer to four decimal places.
5. The diameters of steel shafts produced by a certain manufacturing process should have a mean...
5. The diameters of steel shafts produced by a certain manufacturing process should have a mean diameter of 0.255 inches. The diameter is known to have a standard deviation of σ= 0.0001 inch. A random sample of 10 shafts has an average diameter of 0.2545 inches. (a) Set up the appropriate hypotheses on the mean μ (b) Test these hypotheses using α: 0.05, what are your conclusions? (c) Find the P-value for this test. P 2.6547x1055
Suppose cattle in a large herd have a mean weight of 1158lbs1158lbs and a standard deviation...
Suppose cattle in a large herd have a mean weight of 1158lbs1158lbs and a standard deviation of 92lbs92lbs. What is the probability that the mean weight of the sample of cows would differ from the population mean by less than 12lbs12lbs if 5555 cows are sampled at random from the herd? Round your answer to four decimal places.
A particular manufacturing design requires a shaft with a diameter of 23.000 mm, but shafts with...
A particular manufacturing design requires a shaft with a diameter of 23.000 mm, but shafts with diameters between 22.992 mm and 23.008 mm are acceptable. The manufacturing process yields shafts with diameters normally distributed, with a mean of 23.005 mm and a standard deviation of 0.004 mm. Complete parts (a) through (d) below. (Round to four decimal places as needed.) c. For this process, what is the diameter that will be exceeded by only 0.5% of the shafts? The diameter...
Suppose babies born in a large hospital have a mean weight of 3242 grams, and a...
Suppose babies born in a large hospital have a mean weight of 3242 grams, and a standard deviation of 446 grams. if 107 babies are sampled at random from the hospital, what is the probability that the mean weight of the sample babies would be less than 3285 grams Round your answer to four decimal places
tried 0.0025 too, did not work either A manufacturing process is designed to produce bolts with...
tried 0.0025 too, did not work either
A manufacturing process is designed to produce bolts with a 0.5-inch diameter. Once each day, a random sample of 36 bolts is selected and the bolt diameters recorded. If the resulting sample mean is less than 0.490 inches or greater than 0.510 inches, the process is shut down for adjustment. The standard deviation for diameter is 0.02 inches. What is the probability that the manufacturing line will be shut down unnecessarily? (Hint: Find...
1) We know that z has a standard normal distribution with a mean of 0 and...
1) We know that z has a standard normal distribution with a mean of 0 and standard deviation of 1. The probability that z is less than 1.15 is . Use your z-table and report your answer to four decimal places. 2)A sample of 15 grades from a recent Stats exam has a mean of 69.3 points (out of a possible 100 points) and a standard deviation of 16.5 points. Calculate the z-score for the student who scored 74.1 points on...
Correct Suppose a batch of metal shafts produced in a manufacturing company have a standard deviation of 1.4 and a mean diameter of 212 inches in r 80 shafts are sampled at random from the batch, what is the probability that the mean diameter of the sample shafts would differ from the population mean by greater than 0.1 inches? Round your answer to four decimal places How to enter your answer
5. The diameters of steel shafts produced by a certain manufacturing process should have a mean diameter of 0.255 inches. The diameter is known to have a standard deviation of σ= 0.0001 inch. A random sample of 10 shafts has an average diameter of 0.2545 inches. (a) Set up the appropriate hypotheses on the mean μ (b) Test these hypotheses using α: 0.05, what are your conclusions? (c) Find the P-value for this test. P 2.6547x1055
A particular manufacturing design requires a shaft with a diameter of 23.000 mm, but shafts with diameters between 22.992 mm and 23.008 mm are acceptable. The manufacturing process yields shafts with diameters normally distributed, with a mean of 23.005 mm and a standard deviation of 0.004 mm. Complete parts (a) through (d) below. (Round to four decimal places as needed.) c. For this process, what is the diameter that will be exceeded by only 0.5% of the shafts? The diameter...
Suppose babies born in a large hospital have a mean weight of 3242 grams, and a standard deviation of 446 grams. if 107 babies are sampled at random from the hospital, what is the probability that the mean weight of the sample babies would be less than 3285 grams Round your answer to four decimal places
tried 0.0025 too, did not work either
A manufacturing process is designed to produce bolts with a 0.5-inch diameter. Once each day, a random sample of 36 bolts is selected and the bolt diameters recorded. If the resulting sample mean is less than 0.490 inches or greater than 0.510 inches, the process is shut down for adjustment. The standard deviation for diameter is 0.02 inches. What is the probability that the manufacturing line will be shut down unnecessarily? (Hint: Find...
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