Score at 3-years Score at 4-years 33 36 46 48 27 35 44 50 36 45 30 39 39 40 35 46 35 42 1. A developmental psychologist would like to determine how much fine motor skill changes for children from age 3 to age 4. He takes a random sample of 9 three-year old children and gives each a manual dexterity test that measures fine motor skill. He tests these same children a year later, when they are each four-years old. Higher scores on this test indicate better fine motor skills. Provide a point estimate, the 80% confidence interval, and the 90% confidence interval for the population mean of the difference scores.
Score at 3-years Score at 4-years 33 36 46 48 27 35 44 50 36 45 30 39 39 40 35 46 35 42 1. A developmental psychologist would like to determine how much fine motor skill changes for children from age 3 to age 4. He takes a random sample of 9 three-year old children and gives each a manual dexterity test that measures fine motor skill. He tests these same children a year later, when they are each four-years old. Higher scores on this test indicate better fine motor skills. Provide a point estimate, the 80% confidence interval, and the 90% confidence interval for the population mean of the difference scores.
Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter4: Eigenvalues And Eigenvectors
Section4.6: Applications And The Perron-frobenius Theorem
Problem 25EQ
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Score at 3-years |
Score at 4-years |
33 |
36 |
46 |
48 |
27 |
35 |
44 |
50 |
36 |
45 |
30 |
39 |
39 |
40 |
35 |
46 |
35 |
42 |
1. A developmental psychologist would like to determine how much fine motor skill changes for children from age 3 to age 4. He takes a random sample of 9 three-year old children and gives each a manual dexterity test that measures fine motor skill. He tests these same children a year later, when they are each four-years old. Higher scores on this test indicate better fine motor skills. Provide a point estimate, the 80% confidence interval, and the 90% confidence interval for the population
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