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ears measured in foot-pounds is an important characteristic. A random sample of 10 gears from upplier 1 results in 2, = 290 and s, = 12, and another random sample of 16 gears from the econd supplier results in 8, = 321 and sz = 22. s there evidence to support the claim that supplier 2 provides gears with higher mean impact trength? Use a 0.05, and assume that both populations are normally distributed but the ariances are not equal. a. Because -4.64 < -1.714, reject the Null Hypothesis b. None among the choices c. Because -4.64 < -1.714, fail to reject the Null Hypothesis d. Reject the Null Hypothesis

ears measured in foot-pounds is an important characteristic. A random sample of 10 gears from upplier 1 results in 2, = 290 and s, = 12, and another random sample of 16 gears from the econd supplier results in 8, = 321 and sz = 22. s there evidence to support the claim that supplier 2 provides gears with higher mean impact trength? Use a 0.05, and assume that both populations are normally distributed but the ariances are not equal. a. Because -4.64 < -1.714, reject the Null Hypothesis b. None among the choices c. Because -4.64 < -1.714, fail to reject the Null Hypothesis d. Reject the Null Hypothesis

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 1GP
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Two suppliers manufacture a plastic gear used in a laser printer. The impact strength of these gears measured in foot-pounds is an important characteristic. A random sample of 10 gears from supplier 1 results in x, = 290 and s, = 12, and another random sample of 16 gears from the second supplier results in 8, = 321 and sz = 22. Is there evidence to support the claim that supplier 2 provides gears with higher mean impact strength? Use a = 0.05, and assume that both populations are normally distributed but the variances are not equal. a. Because -4.64 < -1.714, reject the Null Hypothesis b. None among the choices c. Because -4.64 < -1.714, fail to reject the Null Hypothesis d. Reject the Null Hypothesis
Transcribed Image Text:Two suppliers manufacture a plastic gear used in a laser printer. The impact strength of these gears measured in foot-pounds is an important characteristic. A random sample of 10 gears from supplier 1 results in x, = 290 and s, = 12, and another random sample of 16 gears from the second supplier results in 8, = 321 and sz = 22. Is there evidence to support the claim that supplier 2 provides gears with higher mean impact strength? Use a = 0.05, and assume that both populations are normally distributed but the variances are not equal. a. Because -4.64 < -1.714, reject the Null Hypothesis b. None among the choices c. Because -4.64 < -1.714, fail to reject the Null Hypothesis d. Reject the Null Hypothesis
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