A reputed public school has 800 children. The school management has changed the school uniform twice in a year. A sociologist wishes to gauge parents' reaction to this decision of the management. The sociologist has 5 skilled investigators. He selected 5 subsamples of 8 students each, so that, the overall sample was of size 40. Each investigator interviewed the parents of the students falling in the sub- sample assigned to him, and gave scores from 1 to 10 depending on the severity of respondent's reaction to the management's decision. The scores thus recorded are presented in the following table: Subsample Scores 3 5 6. 8 4 9 10 5 3 4 7 8 2 8 3 5 2 4 4 4 5 4 3 5 5 3 6. 4 8 Assuming that the random starts for the subsamples were selected with replacement, estimate the average score for the parents of all the 800 students, and also build up the confidence interval for the true average score.

A reputed public school has 800 children. The school management has changed the school uniform twice in a year. A sociologist wishes to gauge parents' reaction to this decision of the management. The sociologist has 5 skilled investigators. He selected 5 subsamples of 8 students each, so that, the overall sample was of size 40. Each investigator interviewed the parents of the students falling in the sub- sample assigned to him, and gave scores from 1 to 10 depending on the severity of respondent's reaction to the management's decision. The scores thus recorded are presented in the following table: Subsample Scores 3 5 6. 8 4 9 10 5 3 4 7 8 2 8 3 5 2 4 4 4 5 4 3 5 5 3 6. 4 8 Assuming that the random starts for the subsamples were selected with replacement, estimate the average score for the parents of all the 800 students, and also build up the confidence interval for the true average score.

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 8CR

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