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

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Description: The University of Sultan Qaboos Administration decided to choose a random sample fromthree sections. Statistics, economics and mathematics to estimate the average number ofpractical training hours. There are 150 students in of statistics section 60

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

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Concept explainers

Types of Bias

Statistics is the study of data collection, organization, analysis, interpretation, and presentation. Statistical bias is a characteristic of a statistical technique or its findings in which the expected value deviates from the actual root quantitative parameter being estimated. According to the actual definition of bias, it refers to the tendency of a statistic to overestimate or underestimate a parameter.

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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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