2. Two suppliers manufacture a plastic gear used in a laser printer. The impact of these gears measured in foot-pounds is an important characteristic. Assume the impact strength from both suppliers are independent of each other and normally distributed. A random sample of 10 gears from supplier 1 results in = 289.3 and s = (35.5)². Another sample of 16 gears from supplier 2 results in 2 321.5 and s (21.1)². Supplier 2 claims to provide gears with higher mean impact strength than supplier 1. %3D Use a F test with a = 0.1 to determine whether the plastic gears (a) from two suppliers have the same impact strength variance. (b) Determine whether the claim of supplier 2 is correct. Use a = 0.05.
2. Two suppliers manufacture a plastic gear used in a laser printer. The impact of these gears measured in foot-pounds is an important characteristic. Assume the impact strength from both suppliers are independent of each other and normally distributed. A random sample of 10 gears from supplier 1 results in = 289.3 and s = (35.5)². Another sample of 16 gears from supplier 2 results in 2 321.5 and s (21.1)². Supplier 2 claims to provide gears with higher mean impact strength than supplier 1. %3D Use a F test with a = 0.1 to determine whether the plastic gears (a) from two suppliers have the same impact strength variance. (b) Determine whether the claim of supplier 2 is correct. Use a = 0.05.
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![2. Two suppliers manufacture a plastic gear used in a laser printer. The impact of
these gears measured in foot-pounds is an important characteristic. Assume the
impact strength from both suppliers are independent of each other and normally
distributed. A random sample of 10 gears from supplier 1 results in T1 = 289.3
and s = (35.5)². Another sample of 16 gears from supplier 2 results in 2 321.5
and s = (21.1)². Supplier 2 claims to provide gears with higher mean impact
strength than supplier 1.
(a)
from two suppliers have the same impact strength variance.
Use a F test with a = 0.1 to determine whether the plastic gears
(b)
Determine whether the claim of supplier 2 is correct. Use a = 0.05.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc9e32d3d-f2a4-47ae-9f68-0d10d4bb4954%2Fceda8603-08a1-4d22-88c1-37e197d926a0%2Fd13nqdo_processed.jpeg&w=3840&q=75)
Transcribed Image Text:2. Two suppliers manufacture a plastic gear used in a laser printer. The impact of
these gears measured in foot-pounds is an important characteristic. Assume the
impact strength from both suppliers are independent of each other and normally
distributed. A random sample of 10 gears from supplier 1 results in T1 = 289.3
and s = (35.5)². Another sample of 16 gears from supplier 2 results in 2 321.5
and s = (21.1)². Supplier 2 claims to provide gears with higher mean impact
strength than supplier 1.
(a)
from two suppliers have the same impact strength variance.
Use a F test with a = 0.1 to determine whether the plastic gears
(b)
Determine whether the claim of supplier 2 is correct. Use a = 0.05.
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