Lesley E. Tan investigated the relationship between left-handedness vs. right-handedness and motor competence in preschool children. Random samples of 8 left-handed preschool children and 8 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 below. Determine the appropriate test and best distribution to use for that test. Left-handed Right-handed Sample Size 8 8 Sample Mean 98 94.5 Sample Standard Deviation 17.57 19.24 A.) Matched or paired samples, Student’s-t distribution B.) Two population proportions, normal distribution C.) Two independent means, Student’s-t distribution D.) Two independent means, normal distribution
Lesley E. Tan investigated the relationship between left-handedness vs. right-handedness and motor competence in preschool children. Random samples of 8 left-handed preschool children and 8 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 below. Determine the appropriate test and best distribution to use for that test.
Left-handed | Right-handed | |
8 | 8 | |
Sample |
98 | 94.5 |
Sample Standard Deviation | 17.57 | 19.24 |
A.) Matched or paired samples, Student’s-t distribution
B.) Two population proportions,
C.) Two independent means, Student’s-t distribution
D.) Two independent means, normal distribution
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