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A quality manager believes there may be a relationship between the experience level of an inspector and whether a product passes or fails inspection. Inspection records were reviewed for 630 units of a particular product, and the number of units that passed and failed inspection was determined based on three inspector experience levels. The results are shown in the following table. Decision Pass Fail Low (< 2 years) 151 14 Experience Level Medium (2-8 years) 285 42 High (> 8 years) 100 25 a. Select the competing hypotheses to determine whether the inspector pass/fail decision depends on experience level. Test statistic O Ho: Inspector pass/fail decision and experience level are independent; HA: Inspector pass/fail decision and experience level are dependent. O Ho: Inspector pass/fail decision and experience level are dependent; HA: Inspector pass/fail decision and experience level are independent. b. Calculate the value of the test statistic. Note: Round the intermediate calculations to at least 4 decimal places and final answer to 3 decimal places.

A quality manager believes there may be a relationship between the experience level of an inspector and whether a product passes or fails inspection. Inspection records were reviewed for 630 units of a particular product, and the number of units that passed and failed inspection was determined based on three inspector experience levels. The results are shown in the following table. Decision Pass Fail Low (< 2 years) 151 14 Experience Level Medium (2-8 years) 285 42 High (> 8 years) 100 25 a. Select the competing hypotheses to determine whether the inspector pass/fail decision depends on experience level. Test statistic O Ho: Inspector pass/fail decision and experience level are independent; HA: Inspector pass/fail decision and experience level are dependent. O Ho: Inspector pass/fail decision and experience level are dependent; HA: Inspector pass/fail decision and experience level are independent. b. Calculate the value of the test statistic. Note: Round the intermediate calculations to at least 4 decimal places and final answer to 3 decimal places.

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
Section10.5: Comparing Sets Of Data
Problem 13PPS
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c. Find the p-value. p-value < 0.01 p-value > 0.10 O 0.01 < p-value < 0.025 0.05 ≤ p-value < 0.10 O 0.025 ≤ p-value < 0.05 d-1. At the 1% significance level, what is your conclusion to the hypothesis test? d-2. Does your conclusion change at the 10% significance level? Yes Ho. At the 1% significance level, we O No conclude that inspection pass/fail and exp
Transcribed Image Text:c. Find the p-value. p-value < 0.01 p-value > 0.10 O 0.01 < p-value < 0.025 0.05 ≤ p-value < 0.10 O 0.025 ≤ p-value < 0.05 d-1. At the 1% significance level, what is your conclusion to the hypothesis test? d-2. Does your conclusion change at the 10% significance level? Yes Ho. At the 1% significance level, we O No conclude that inspection pass/fail and exp
A quality manager believes there may be a relationship between the experience level of an inspector and whether a product passes or fails inspection. Inspection records were reviewed for 630 units of a particular product, and the number of units that passed and failed inspection was determined based on three inspector experience levels. The results are shown in the following table. Decision Pass Fail Low (< 2 years) 151 14 Experience Level Medium (2-8 years) 285 42 High (> 8 years) 100 25 a. Select the competing hypotheses to determine whether the inspector pass/fail decision depends on experience level. Test statistic Ho: Inspector pass/fail decision and experience level are independent; HA: Inspector pass/fail decision and experience level are dependent. Ho: Inspector pass/fail decision and experience level are dependent; HA: Inspector pass/fail decision and experience level are independent. b. Calculate the value of the test statistic. Note: Round the intermediate calculations to at least 4 decimal places and final answer to 3 decimal places.
Transcribed Image Text:A quality manager believes there may be a relationship between the experience level of an inspector and whether a product passes or fails inspection. Inspection records were reviewed for 630 units of a particular product, and the number of units that passed and failed inspection was determined based on three inspector experience levels. The results are shown in the following table. Decision Pass Fail Low (< 2 years) 151 14 Experience Level Medium (2-8 years) 285 42 High (> 8 years) 100 25 a. Select the competing hypotheses to determine whether the inspector pass/fail decision depends on experience level. Test statistic Ho: Inspector pass/fail decision and experience level are independent; HA: Inspector pass/fail decision and experience level are dependent. Ho: Inspector pass/fail decision and experience level are dependent; HA: Inspector pass/fail decision and experience level are independent. b. Calculate the value of the test statistic. Note: Round the intermediate calculations to at least 4 decimal places and final answer to 3 decimal places.
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