a. A researcher is interested in determining if there is a relationship between handedness and penmanship. To study this question, the researcher submitted samples from 100 students to penmanship experts. The samples were rated to be of low, medium or high penmanship quality. The observed frequencies were totaled according to left verses right handedness. PenmanshipHandednesslowmediumhighLeft8296right93711Which test is appropriate for this data? ANOVA F-testtwo sample z-testchi-square testtwo sample t-testone sample t-testone sample z-test b. What is the difference between a Type I and Type II error?c. What is the main idea behind conducting the Chi-square test?

Introduction: As it is of interest to test the presence of any relationship between handedness and…

Answered: a. A researcher is interested in…

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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a. A researcher is interested in determining if there is a relationship between handedness and penmanship. To study this question, the researcher submitted samples from 100 students to penmanship experts. The samples were rated to be of low, medium or high penmanship quality. The observed frequencies were totaled according to left verses right handedness.

	Penmanship
Handedness	low	medium	high
Left	8	29	6
right	9	37	11

Which test is appropriate for this data?

ANOVA F-test
two sample z-test
chi-square test
two sample t-test
one sample t-test
one sample z-test

b. What is the difference between a Type I and Type II error?

c. What is the main idea behind conducting the Chi-square test?

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