The University of Sultan Qaboos Administration decided to choose a random sample from three sections. Statistics, economics and mathematics to estimate the average number of practical training hours. There are 150 students in of statistics section 60 students in Economics section and 96 students in Mathematics section. The university decided to select 15 student from statistics section, 6 students from economic section and 10 student, from mathematics section. Table below shows the data for the students. Number of training hours for statistic section 40,28, 30, 35,40, 48,51, 38, 35, 33, 42, 50, 40, 55, 47 Number of training hours for economic section 30, 26 , 30 , 28, 30, 35 Number of training hours for Mathematics section 25,22,24,30,26, 28, 20,19, 30,27 Find: (a) Estimate of the average number of training hours for the three section
The University of Sultan Qaboos Administration decided to choose a random sample from three sections. Statistics, economics and mathematics to estimate the average number of practical training hours. There are 150 students in of statistics section 60 students in Economics section and 96 students in Mathematics section. The university decided to select 15 student from statistics section, 6 students from economic section and 10 student, from mathematics section. Table below shows the data for the students. Number of training hours for statistic section 40,28, 30, 35,40, 48,51, 38, 35, 33, 42, 50, 40, 55, 47 Number of training hours for economic section 30, 26 , 30 , 28, 30, 35 Number of training hours for Mathematics section 25,22,24,30,26, 28, 20,19, 30,27 Find: (a) Estimate of the average number of training hours for the three section
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 6E
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Transcribed Image Text:The University of Sultan Qaboos Administration decided to choose a random sample from
three sections. Statistics, economics and mathematics to estimate the average number of
practical training hours. There are 150 students in of statistics section 60 students in
Economics section and 96 students in Mathematics section. The university decided to select 15
student from statistics section, 6 students from economic section and 10 student, from
mathematics section. Table below shows the data for the students.
Number of training hours for statistic section 40,28, 30, 35,40, 48,51, 38, 35, 33, 42, 50,
40, 55, 47
Number of training hours for economic section 30, 26, 30 , 28, 30, 35
Number of training hours for Mathematics
section
25, 22,24, 30,26, 28, 20,19,30,27
Find:
(a) Estimate of the average number of training hours for the three section
(b) Bound on the error of the estimate
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