1. Verbal ability consists of at least two components: verbal comprehension (e.g., reading ability) and verbal fluency (e.g., writing ability). A researcher measures these two components in a sample of 8 seventh-grade children and obtains the following scores: Comprehension Fluency 57 40 74 46 42 38 48 36 75 54 62 42 76 50 69 25 2. a) Is there a significant correlation between the two variables (a ≤ .05)? b) If another seventh-grader obtained a verbal comprehension score of 70, what would his or her predicted verbal fluency score be? A sample of 25 subjects were given two tests (labelled X and Y), leading to the following sample statistics: X-bar = 65 Y-bar = 42 Sx = 10 Sy = 8 In addition, the correlation between X and Y was found to be .65. a) What are the values of SSx, SS, and SSXY? b) What are the values of bl and b0? Show two ways to compute bl. c) Test rxy and b1 for significance (a < .01), confirming that you obtain the same tot in both analyses.

1. Verbal ability consists of at least two components: verbal comprehension (e.g., reading ability) and verbal fluency (e.g., writing ability). A researcher measures these two components in a sample of 8 seventh-grade children and obtains the following scores: Comprehension Fluency 57 40 74 46 42 38 48 36 75 54 62 42 76 50 69 25 2. a) Is there a significant correlation between the two variables (a ≤ .05)? b) If another seventh-grader obtained a verbal comprehension score of 70, what would his or her predicted verbal fluency score be? A sample of 25 subjects were given two tests (labelled X and Y), leading to the following sample statistics: X-bar = 65 Y-bar = 42 Sx = 10 Sy = 8 In addition, the correlation between X and Y was found to be .65. a) What are the values of SSx, SS, and SSXY? b) What are the values of bl and b0? Show two ways to compute bl. c) Test rxy and b1 for significance (a < .01), confirming that you obtain the same tot in both analyses.

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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