Please show all work A company manufactures impellers for use in jet turbine engines. One of...
Please show all work
A company manufactures impellers for use in jet turbine engines. One of the operations involves grinding a particular surface finish on a titanium alloy component. Two different grinding processes can be sued, and both processes can produce parts at identical mean surface roughness. The manufacturing engineer would like to select the process having the least variability in surface roughness. A random sample of n1= 25 parts from the first process results in a sample standard deviation s1= 5.1 microinches, and a random sample of n2= 45 parts from the second process results in a sample standard deviation s2= 4.7 microinches. Using a two-sided confidence interval, can you say, with 90% confidence, whether the two processes have different variances –Explain?
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Please show all work
A company manufactures impellers for use in jet turbine engines.
One of...
Please show calculations using MINITAB PROBLEM 1 A nickel-titanium alloy is. used to make components for...
Please show calculations using MINITAB
PROBLEM 1 A nickel-titanium alloy is. used to make components for jet turbine aircraft engines. Cracking is a potentially serious problem in the final part because it can lead to non-recoverable failure. A test is run at the parts produced to determine the effect of four factors on cracks. The four factors are A pouring temperature Btitanium content C = heat treatment method D amount of grain refiner used Two replicates of a 2 design...
Use the half normal plot to determine factors that are significant.
use the half normal plot to determine factors that are
significant.
1. A nickel-titanium alloy is used to make components for jet turbine aircraft engines. Cracking is a potentally serious problem in the final part, as it can lead to non-recoverable failure. A test is run at the parts producer to determine the effects of four factors on cracks. The four factors are pouring temperature (A), itanium content (B), heat treatment method (C), and the amount of grain refiner used...
Question # 2 The diameter of a shaft in an optical storage drive is normally distributed with mean 0.2508 inch and standard deviation 0.0005 inch. The specifications on the shaft are 0.2500 ± 0.00...
Question # 2 The diameter of a shaft in an optical storage drive is normally distributed with mean 0.2508 inch and standard deviation 0.0005 inch. The specifications on the shaft are 0.2500 ± 0.0015 inch. What proportion of shafts conforms to specifications? he effective life of a component used in a jet-turbine aircraft engine is a random variable f effective life is fairly close to a normal distribution. The engine manufacturer introduces an improvement 050 hours and decreases the standard...
Zip, Inc. manufactures Zip drives on two different manufacturing processes. Because the management of this company...
Zip, Inc. manufactures Zip drives on two different manufacturing processes. Because the management of this company is interested in determining if process 1 takes less manufacturing time, they selected independent random samples from each process. The results of the samples are shown below. Process 1 Process 2 Sample size, n 12 22 Sample mean (in minutes) 58 64 sample standard deviation, s 9 25 a. State the null and alternative hypotheses. b. Determine the degrees of freedom for the...
Zip, Inc. manufactures Zip drives on two different manufacturing processes. Because the management of this company...
Zip, Inc. manufactures Zip drives on two different manufacturing processes. Because the management of this company is interested in determining if process 1 takes less manufacturing time, they selected independent random samples from each process. The results of the samples are shown below. Process 1 Process 2 Sample size, n 12 22 Sample mean (in minutes) 58 64 sample standard deviation, s 9 25 a. State the null and alternative hypotheses. b. Determine the degrees of freedom for the t...
High-power experimental engines are being developed by the Stevens Motor Company for use in its new...
High-power experimental engines are being developed by the Stevens Motor Company for use in its new sports coupe. The engineers have calculated the maximum horsepower for the engine to be 710HP. Twenty five engines are randomly selected for horsepower testing. The sample has an average maximum HP of 740 with a standard deviation of 45HP. Assume the population is normally distributed. Step 1 of 2: Calculate a confidence interval for the average maximum HP for the experimental engine. Use a...
Please answer all parts, and show complete work. 6. (a) A finite population with N =...
Please answer all parts, and show complete work.
6. (a) A finite population with N = 450 has a mean u = 112.5 and standard deviation o = 17.3. For samples of size n = 41, answer the following. The variance is for the sampling distribution of the sample mean X. (b) Random samples of sizes n1 = 32 and n2 = 40 are to be drawn from two independent populations. = 12.3 M1 01 = 2.9 M2 = 9.8...
The fan blades on commercial jet engines must be replaced when wear on these parts indicates...
The fan blades on commercial jet engines must be replaced when wear on these parts indicates too much variability to pass inspection. If a single fan blade broke during operation, it could severely endanger a flight. A large engine contains thousands of fan blades, and safety regulations require that variability measurements on the population of all blades not exceed σ2 = 0.18 mm2. An engine inspector took a random sample of 81 fan blades from an engine. She measured each...
Please show me how to do it on TI84 or show work. Test the claim that...
Please show me how to do it on
TI84 or show work.
Test the claim that the mean GPA of Orange Coast students is significantly different than the mean GPA of Coastline students at the 0.1 significance level. The null and alternative hypothesis would be The test is: left-tailed right-tailed two-tailed The sample consisted of 45 Orange Coast students, with a sample mean GPA of 2.77 and a standard deviation of 0.07, and 45 Coastline students, with a sample mean...
Hi, can you help me provide the step-by-step working solution for part (b) of the above...
Hi, can you help me provide the
step-by-step working solution for part (b) of the above
question?
12 A nickel-titanium alloy is used to make components for jet turbine aircraft engines. Cracking is a potentially serious problem in the final part, as it can lead to non-recoverable failure. A test is run at the parts producer to determine the effects of four factors on cracks. The four factors are pouring temperature (A), titanium content (B), heat treatment method (C), and...
Please show calculations using MINITAB
PROBLEM 1 A nickel-titanium alloy is. used to make components for jet turbine aircraft engines. Cracking is a potentially serious problem in the final part because it can lead to non-recoverable failure. A test is run at the parts produced to determine the effect of four factors on cracks. The four factors are A pouring temperature Btitanium content C = heat treatment method D amount of grain refiner used Two replicates of a 2 design...
use the half normal plot to determine factors that are
significant.
1. A nickel-titanium alloy is used to make components for jet turbine aircraft engines. Cracking is a potentally serious problem in the final part, as it can lead to non-recoverable failure. A test is run at the parts producer to determine the effects of four factors on cracks. The four factors are pouring temperature (A), itanium content (B), heat treatment method (C), and the amount of grain refiner used...
Question # 2 The diameter of a shaft in an optical storage drive is normally distributed with mean 0.2508 inch and standard deviation 0.0005 inch. The specifications on the shaft are 0.2500 ± 0.0015 inch. What proportion of shafts conforms to specifications? he effective life of a component used in a jet-turbine aircraft engine is a random variable f effective life is fairly close to a normal distribution. The engine manufacturer introduces an improvement 050 hours and decreases the standard...
Zip, Inc. manufactures Zip drives on two different manufacturing processes. Because the management of this company is interested in determining if process 1 takes less manufacturing time, they selected independent random samples from each process. The results of the samples are shown below. Process 1 Process 2 Sample size, n 12 22 Sample mean (in minutes) 58 64 sample standard deviation, s 9 25 a. State the null and alternative hypotheses. b. Determine the degrees of freedom for the t...
Please answer all parts, and show complete work.
6. (a) A finite population with N = 450 has a mean u = 112.5 and standard deviation o = 17.3. For samples of size n = 41, answer the following. The variance is for the sampling distribution of the sample mean X. (b) Random samples of sizes n1 = 32 and n2 = 40 are to be drawn from two independent populations. = 12.3 M1 01 = 2.9 M2 = 9.8...
Please show me how to do it on
TI84 or show work.
Test the claim that the mean GPA of Orange Coast students is significantly different than the mean GPA of Coastline students at the 0.1 significance level. The null and alternative hypothesis would be The test is: left-tailed right-tailed two-tailed The sample consisted of 45 Orange Coast students, with a sample mean GPA of 2.77 and a standard deviation of 0.07, and 45 Coastline students, with a sample mean...
Hi, can you help me provide the
step-by-step working solution for part (b) of the above
question?
12 A nickel-titanium alloy is used to make components for jet turbine aircraft engines. Cracking is a potentially serious problem in the final part, as it can lead to non-recoverable failure. A test is run at the parts producer to determine the effects of four factors on cracks. The four factors are pouring temperature (A), titanium content (B), heat treatment method (C), and...
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