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An SRS of 100 flights of a large airline (call this Airline 1) showed that 64 were on time. An SRS of 100 flights of another large airline (call this Airline 2) showed that 80 were on time. Let p₁ and p2 be the proportion of all flights that are on time for these two airlines. A 90% confidence interval for the difference p₁-p2 is: O-0.16±0.062. O-0.16±0.103. 0.16±0.062. O 0.16±0.080.

An SRS of 100 flights of a large airline (call this Airline 1) showed that 64 were on time. An SRS of 100 flights of another large airline (call this Airline 2) showed that 80 were on time. Let p₁ and p2 be the proportion of all flights that are on time for these two airlines. A 90% confidence interval for the difference p₁-p2 is: O-0.16±0.062. O-0.16±0.103. 0.16±0.062. O 0.16±0.080.

Calculus For The Life Sciences
Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter1: Functions
Section1.2: The Least Square Line
Problem 1E
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An SRS of 100 flights of a large airline (call this Airline 1) showed that 64 were on time. An SRS of 100 flights of another large airline (call this Airline 2) showed that 80 were on time. Let p₁ and p2 be the proportion of all flights that are on time for these two airlines. A 90% confidence interval for the difference p1-P2 is: O-0.16±0.062. O-0.16±0.103. 0.16±0.062. O 0.16±0.080.
Transcribed Image Text:An SRS of 100 flights of a large airline (call this Airline 1) showed that 64 were on time. An SRS of 100 flights of another large airline (call this Airline 2) showed that 80 were on time. Let p₁ and p2 be the proportion of all flights that are on time for these two airlines. A 90% confidence interval for the difference p1-P2 is: O-0.16±0.062. O-0.16±0.103. 0.16±0.062. O 0.16±0.080.
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