Two examiners are marking an examination paper, and it is believed that examiner A is more strict

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Two examiners are marking an examination paper, and it is believed that examiner A is more strict than examiner B. The results from several papers are added together for each examiner, and presented in the following table.

Test the claim at the 5% significance level, assuming that the marks are normally distributed with a standard deviation of 15.

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Cambridge International AS & A Level Further Mathematics Coursebook

ISBN: 9781108403375

1st Edition

Authors: Lee Mckelvey, Martin Crozier

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Question Posted: Sep 27, 2021 01:20 AM

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Two examiners are marking an examination paper, and it is believed that examiner A is more strict

Question:

Sample size Sum of marks Examiner A 16 689 Examiner B 12 636

Step by Step Answer:

To test the claim at the 5 significance level we can use a twosample ttest Let us define the null an...View the full answer

Cambridge International AS & A Level Further Mathematics Coursebook

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