StartA university department chair believes that the afternoon section of a large survey class has a consistently lowerproportion of students that pass the class compared to the morning section. The chair checks a random sampleof student records from each section. The results of the data collected are shown below.Morning sectionAfternoon sectionSuccesses346 Successes426500400 ObservationsObservationsp-hat_10.865 p-hat_20.852Confidence level7-score-0.5548p-value31023p= Ex: 1.2342=Morning section samples: n₁ = Ex: 9Afternoon section samples: n2 =Sample proportion for morning section samples: p₁ = Ex: 1.234Sample proportion for afternoon section samples: p₂ =1HoO7LBak(CC

A university department chair believes that the afternoon section of a large survey class has a consistently lower proportion of students that pass the class compared to the morning section. The chair checks a random sample of student records from each section. The results of the data collected are shown below. Morning section Afternoon section 346 Successes Successes Observations 426 500 400 Observations p-hat_1 0.865 p-hat_2 0.852 Confidence level 95% Z-score -0.5548 p-value 0.2912 -2 -1 0 1 2 3 P = Ex: 1.234 2= Morning section samples: n1 = Ex: 9 Afternoon section samples: n₂ = Sample proportion for morning section samples: p₁ = Ex: 1.234 Sample proportion for afternoon section samples: p2 =

A university department chair believes that the afternoon section of a large survey class has a consistently lower proportion of students that pass the class compared to the morning section. The chair checks a random sample of student records from each section. The results of the data collected are shown below. Morning section Afternoon section 346 Successes Successes Observations 426 500 400 Observations p-hat_1 0.865 p-hat_2 0.852 Confidence level 95% Z-score -0.5548 p-value 0.2912 -2 -1 0 1 2 3 P = Ex: 1.234 2= Morning section samples: n1 = Ex: 9 Afternoon section samples: n₂ = Sample proportion for morning section samples: p₁ = Ex: 1.234 Sample proportion for afternoon section samples: p2 =

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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