3. Two companies compete in the production of laser printers. The impact strength of a printer measured in foot-pounds is an important characteristic. A random sample of n = 10 gears from company 1 results in T = 290 and s1 = 12, and another random sample of n2 = 16 gears from the second company results in F2 = 321 and s2 = 22. (a) Is there evidence to support the claim that company 2 provides gears with higher mean impact strength? Use a = 0.05, and assume that both populations are normally distributed with potentially unequal variance. Report the p-value for the test you have performed. (b) Do the data support the claim that the mean impact strength of gears from company 2 is at least 25 foot-pounds higher than that of supplier 1?
3. Two companies compete in the production of laser printers. The impact strength of a printer measured in foot-pounds is an important characteristic. A random sample of n = 10 gears from company 1 results in T = 290 and s1 = 12, and another random sample of n2 = 16 gears from the second company results in F2 = 321 and s2 = 22. (a) Is there evidence to support the claim that company 2 provides gears with higher mean impact strength? Use a = 0.05, and assume that both populations are normally distributed with potentially unequal variance. Report the p-value for the test you have performed. (b) Do the data support the claim that the mean impact strength of gears from company 2 is at least 25 foot-pounds higher than that of supplier 1?
MATLAB: An Introduction with Applications
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Author:Amos Gilat
Publisher:Amos Gilat
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Section: Chapter Questions
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![3. Two companies compete in the production of laser printers. The impact strength of a
printer measured in foot-pounds is an important characteristic. A random sample of
n = 10 gears from company 1 results in T = 290 and s1 = 12, and another random
sample of n2 = 16 gears from the second company results in F2 = 321 and s2 = 22.
(a) Is there evidence to support the claim that company 2 provides gears with higher
mean impact strength? Use a = 0.05, and assume that both populations are
normally distributed with potentially unequal variance. Report the p-value for
the test you have performed.
(b) Do the data support the claim that the mean impact strength of gears from
company 2 is at least 25 foot-pounds higher than that of supplier 1?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fb0f9a86e-4817-46ea-ae8b-5cbbf99cbe42%2Fa6f30f96-58a5-4945-a416-77bb8f368fcb%2Fuce5ruo_processed.png&w=3840&q=75)
Transcribed Image Text:3. Two companies compete in the production of laser printers. The impact strength of a
printer measured in foot-pounds is an important characteristic. A random sample of
n = 10 gears from company 1 results in T = 290 and s1 = 12, and another random
sample of n2 = 16 gears from the second company results in F2 = 321 and s2 = 22.
(a) Is there evidence to support the claim that company 2 provides gears with higher
mean impact strength? Use a = 0.05, and assume that both populations are
normally distributed with potentially unequal variance. Report the p-value for
the test you have performed.
(b) Do the data support the claim that the mean impact strength of gears from
company 2 is at least 25 foot-pounds higher than that of supplier 1?
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