Arconic Inc is a producer of aluminum components for the avionics and automotive industries. At its Davenport Works plant, an engineer has conducted a quality control test in which aluminum coils produced in each of the three shifts were inspected. The study was designed to determine whether the population proportion of good parts was the same for all three shifts. Sample data follow. Arconic Inc is a producer of aluminum components for the avionics and automotive industries. At its Davenport Works plant, an engineer has conducted a quality control test in which aluminum coilsproduced in each of the three shifts were inspected. The study was designed to determine whether the population proportion of good parts was the same for all three shifts. Sample data follow.Excel File: data12-32.xlsxProduction ShiftQualityFirstSecondThirdGood285368176Defective153224a. Using a 0.05 level of significance, conduct a hypothesis test to determine if the population proportion of good parts is the same for all three shifts.Ho: All population proportions are equalHa: Not all population proportions are equal vWhat is the p-value? Use Table 3 of Appendix B.The p-value is between 0.01 and 0.025 vWhat is your conclusion?Conclude the population proportion of good parts is not equalfor all three shifts.b. If the conclusion is that the population proportions are not all the same, use a multiple comparison procedure to determine how the shifts differ in terms of quality? Round Pi, pj and their absolutedifferences to two decimal places. Round critical value to four decimal places.AbsoluteCriticalSignificant if AbsoluteComparisonpiPjDifferenceValueDiff > CVijninj1 vs. 2Select your answer1 vs. 3Select your answer2 vs. 3Select your answerWhat shift needs to improve the quality of parts produced?- Select your answer -Because it has - Select your answer -quality than the other two shifts.

Answered: Image /qna-images/answer/beae59a7-05be-4f12-b493-1263a8229eea.jpg

Arconic Inc is a producer of aluminum components for the avionics and automotive industries. At its Davenport Works plant, an engineer has conducted a quality control test in which aluminum coils produced in each of the three shifts were inspected. The study was designed to determine whether the population proportion of good parts was the same for all three shifts. Sample data follow.

Arconic Inc is a producer of aluminum components for the avionics and automotive industries. At its Davenport Works plant, an engineer has conducted a quality control test in which aluminum coils produced in each of the three shifts were inspected. The study was designed to determine whether the population proportion of good parts was the same for all three shifts. Sample data follow.

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section11.4: Collecting Data

Problem 5E

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