Q4) A Professor wishes to analyse the marks obtained by the students of his class in an exam. He finds the mean of the marks of all students to be 75. However, a student believes the mean to be different. He analyses the marks of 7 students from the class and finds the mean to be 78 and standard deviation to be 10. (a) State the null and alternative hypotheses. (b) At a confidence interval of 99%, is there enough evidence to discard the null hypothesis? Use the p-value method.

Q4) A Professor wishes to analyse the marks obtained by the students of his class in an exam. He finds the mean of the marks of all students to be 75. However, a student believes the mean to be different. He analyses the marks of 7 students from the class and finds the mean to be 78 and standard deviation to be 10. (a) State the null and alternative hypotheses. (b) At a confidence interval of 99%, is there enough evidence to discard the null hypothesis? Use the p-value method.

Name: A Professor wishes to analyse the marks obtained by the students of hi
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A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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