Mathematics, 24.03.2020 04:15 jalenrussell321
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 1=290ands1=12, and another random sample of 16 gears from the second supplier results in¯x 2=321ands2=22. a. Is there evidence to support the claim that supplier 2 provides gears with higher mean impact strength? Use α = 0.05, and assume that both populations are normally distributed but the variances are not equal. What is the P-value for this test? b. Do the data support the claim that the mean impact strength of gears from supplier 2 is at least 25 foot-pounds higher than that of supplier 1? Make the same assumptions as in part (a). c. Construct a confidence interval estimate for the difference in mean impact strength, and explain how this interval could be used to answer the question posed regarding supplier-to-supplier differences
Answers: 3
Mathematics, 21.06.2019 20:30
Select all expressions that are equivalent to 2(3x + 7y). question 1 options: 6x + 14y 6x + 7y 1(6x + 14y)
Answers: 1
Two suppliers manufacture a plastic gear used in a laser printer. The impact strength of these gears...
Health, 12.11.2019 07:31
Health, 12.11.2019 07:31
Social Studies, 12.11.2019 07:31
Physics, 12.11.2019 07:31
Mathematics, 12.11.2019 07:31
Mathematics, 12.11.2019 07:31
Mathematics, 12.11.2019 07:31
Health, 12.11.2019 07:31
Mathematics, 12.11.2019 07:31
Biology, 12.11.2019 07:31
Advanced Placement (AP), 12.11.2019 07:31