A manufacturer receives parts from two suppliers. An SRS of 400 parts from supplier 1 fınds 20 defective. An SRS of 100 parts from supplier 2 fınds 10 defective. Let p1 and p2 be the proportion of all parts from suppliers 1 and 2, respectively, that are defective. Find a 95% confidence interval for p1 - p2. Finally, provide the numerical value of the Upper Confidence Interval (UCL). Round your final answer to 4 decimal places.

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ISBN:9780470458365
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[Statistics: Confidence Intervals and Hypothesis Testing] How do you solve this, will upvote if done quickly

A manufacturer receives parts from two suppliers. An SRS of 400 parts from supplier 1 finds 20 defective. An
SRS of 100 parts from supplier 2 finds 10 defective. Let p1 and p2 be the proportion of all parts from suppliers
1 and 2, respectively, that are defective. Find a 95% confidence interval for p1 - P2.
Finally, provide the numerical value of the Upper Confidence Interval (UCL). Round your final answer to 4
decimal places.
Transcribed Image Text:A manufacturer receives parts from two suppliers. An SRS of 400 parts from supplier 1 finds 20 defective. An SRS of 100 parts from supplier 2 finds 10 defective. Let p1 and p2 be the proportion of all parts from suppliers 1 and 2, respectively, that are defective. Find a 95% confidence interval for p1 - P2. Finally, provide the numerical value of the Upper Confidence Interval (UCL). Round your final answer to 4 decimal places.
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