(a) The hypothesis being tested is:
H0: µ1 - µ2 = 0
H1: µ1 - µ2 > 0
The test
statistic, z = (63.1 - 57.3)/1.2^2/34
+ 1.1^2/39 = 2.95
The p-value is 0.0016.
Since the p-value (0.0016) is greater than the significance level (0.001), we fail to reject the null hypothesis.
Therefore, we cannot conclude that µ1 - µ2 > 0.
(b) β = 1 - Φ(|μA−μB|*√nA/√σ2A+σ2B/κ - z1−α) = 1 - Φ(6*√34/√1.2^2+1.1^2/0.87 - 1.645) = 0.0000
An experiment was performed to compare the fracture toughness of high-purity 18 Ni maraging steel with...
An experiment was performed to compare the fracture toughness of high-purity 18 Ni maraging steel with commercial purity steel of the same type. For m = 34 specimens, the sample average toughness was x = 63.1 for the high-purity steel, whereas for n = 39 specimens of commercial steel y = 57.3. Because the high- purity steel is more expensive, its use for a certain application can be justified only if its fracture toughness exceeds that of commercial-purity steel by...
An experiment was performed to compare the fracture toughness of high-purity 18 Ni maraging steel with commercial-purity steel of the same type. Form 34 specimens, the sample average toughness was x = 63.1 for the high-purity steel, whereas for n = 39 specimens of commercial steel y = 57.3. Because the high- purity steel is more expensive, its use for a certain application can be justified only if its fracture toughness exceeds that of commercial-purity steel by more than 5....
An experiment was performed to compare the fracture toughness of high-purity 18 Ni maraging steel with commercial-purity steel of the same type. For m = 31 specimens, the sample average toughness was x = 65.3 for the high-purity steel, whereas for n = 38 specimens of commercial steel y = 59.5. Because the high-purity steel is more expensive, its use for a certain application can be justified only if its fracture toughness exceeds that of commercial-purity steel by more than...
An experiment was performed to compare the fracture toughness of high-purity 18 Ni maraging steel with commercial-purity steel of the same type. For m = 32 specimens, the sample average toughness was x = 64.3 for the high-purity steel, whereas for n = 37 specimens of commercial steel y = 58.8. Because the high-purity steel is more expensive, its use for a certain application can be justified only if its fracture toughness exceeds that of commercial-purity steel by more than...
An experiment was performed to compare the fracture toughness of high-purity 18 Ni maraging steel with commercial-purity steel of the same type. For m = 30 specimens, the sample average toughness was x = 65.5 for the high-purity steel, whereas for n = 39 specimens of commercial steel y = 59.9. Because the high-purity steel is more expensive, its use for a certain application can be justified only if its fracture toughness exceeds that of commercial-purity steel by more than...
An experiment was performed to compare the fracture toughness of high-purity 18 Ni maraging steel with commercial-purity steel of the same type. For m = 34 specimens, the sample average toughness was x = 64.2 for the high-purity steel, whereas for n = 39 specimens of commercial steel y = 58.5. Because the high-purity steel is more expensive, its use for a certain application can be justified only if its fracture toughness exceeds that of commercial-purity steel by more than...
An experiment was performed to compare the fracture toughness of high-purity 16 Ni maraging steel with commercial purity steel of the same type Form 30 specimens, the sample average toughness was x = 65.4 for the high-purity steel, whereas for n - 39 specimens of commercial steel y = 59.9. Because the high-punity to is more expensive, its use for a certain application can be justified only if its fracture toughness exceeds that of commercial purity steel by more than...
question b
An experiment was performed to compare the fracture toughness of high-purity 18 Ni maraging weel with commercial purity of the for average toughness was 65.4 for the high-purity steel, whereas for - 39 specimens of commercially-59.9. Because the certain application can be justified only if its fracture toughness exceeds that of commercial purity Weel by more than 5. Suppose that the (a) Assuming that - 1.4 anda, - 1.0, test the relevant hypotheses using a 0.001.( UM), where...
Question 3 4 pts An experiment was performed to compare the fracture toughness of high purity 18 Ni maraging steel with commercial-purity steel of the same type. For n 32 specimens, the simple average toughness was 65.6 for the high-purity steel, whereas for N2 = 38 specimens of commercial steel = 59.8. Because the high-purity steel is more expensive, its use for a certain application can be justified only if its fracture toughness exceeds that of commercial-purity steel by more...
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if done in excel.
An experiment was performed to compare the fracture toughness of high-purity 18 Ni maraging steel with commercial-purity steel of the same type. For m = 33 specimens, the sample average toughness was x = 64.1 for the high-purity steel, whereas for n = 38 specimens of commercial steel y = 58.6. Because the high-purity steel is more expensive, its use for a certain application can...