Grades Two different professors teach an introductoryStatistics course. The table shows the distribution of finalgrades they reported. We wonder whether one of theseprofessors is an “easier” grader.a) Will you test goodness-of-fit, homogeneity, orindependence?b) Write appropriate null hypotheses.c) Find the expected counts for each cell, and explainwhy the chi-square procedures are not appropriate. Prof. Alpha Prof. BetaA 3 9B 11 12C 14 8D 9 2F 3 1

Grades Two different professors teach an introductoryStatistics course. The table shows the distribution of finalgrades they reported. We wonder whether one of theseprofessors is an “easier” grader.a) Will you test goodness-of-fit, homogeneity, orindependence?b) Write appropriate null hypotheses.c) Find the expected counts for each cell, and explainwhy the chi-square procedures are not appropriate. Prof. Alpha Prof. BetaA 3 9B 11 12C 14 8D 9 2F 3 1

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section: Chapter Questions

Problem 6CST

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