Prof. B Santanu wanted to study if brightest students (getting high scores) submit answer-sheets in exam hall earlier (as they recall lessons well) or later (for, they may write all in minute detail), than others. In last QT test, Professor noted the order of submission, and their score (marks). One scores 90 or above, is considered as 'brightest student'. Test (at 5% level), based on following data, if we can conclude that, brightest students submit answer-sheets randomly'.

Prof. B Santanu wanted to study if brightest students (getting high scores) submit answer-sheets in exam hall earlier (as they recall lessons well) or later (for, they may write all in minute detail), than others. In last QT test, Professor noted the order of submission, and their score (marks). One scores 90 or above, is considered as 'brightest student'. Test (at 5% level), based on following data, if we can conclude that, brightest students submit answer-sheets randomly'.

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Concept explainers

Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.

Question

Prof. B Santanu wanted to study if brightest students (getting
high scores) submit answer-sheets in exam hall earlier (as they
recall lessons well) or later (for, they may write all in minute
detail), than others. In last QT test, Professor noted the order of
submission, and their score (marks). One scores 90 or above, is
considered as 'brightest student'. Test (at 5% level), based on
following data, if we can conclude that, brightest students
submit answer-sheets randomly'.
Order
Grades
70 85 89
90 57 86
55 47 59
1-10:
94
92
98
63
88
94
85
79
72
80
93
66
11-20: 69
21-30: 50
68
63
89
51
90
75
872

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