Introductory Statistics
1st Edition
ISBN: 9781938168208
Author: Barbara Illowsky, Susan Dean
Publisher: OpenStax College
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Textbook Question
Chapter 10, Problem 134BITH
Lesley E. Tan investigated the relationship between left-handedness vs. right-handedness and motor competence in preschool children. Random samples of 41 left-handed preschool children and 41 right-handed preschool children were given several tests of motor skills to determine if there is evidence of a difference between the children based on this experiment. The experiment produced the means and standard deviations shown Table 10.36. Determine the appropriate test and best distribution to use for that test.
| Left-handed | Right-handed | |
| 41 | 41 | |
| Sample |
97.5 | 98.1 |
| Sample standard deviation | 17.5 | 19.2 |
Table 10.36
a. Two independent means,
b. Two independent means, Student’s-t distribution
c. Matched or paired samples, Student’s-t distribution
d. Two population proportions, normal distribution
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Chapter 10 Solutions
Introductory Statistics
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