Given the equation of a regression line is y 104x 50 3 dec

Given the equation of a regression line is y = -1.04x + 50 3 decide whether there is a positive linear correlation or a negative linear correlation. As part of a Master\'s thesis project, a mathematics teacher is interested in the effects of two different teaching methods on mathematics achievement. She considers setting up two different research studies. She will randomly choose one class of students to learn an algebraic concept using traditional methods and another class of students to learn the same concept using manipulate She will then compare their test scores. B: She will randomly choose one class of students to learn an algebraic concept using traditional methods and on another day, the same students will learn a similar concern using manipulatives. She will then compare their test scores. Determine whether the samples are dependent or independent a. A is independent and B is dependent. A is dependent and B is independent. Both are independent. Both are dependent.

Solution

14 ) The regression line has slope = -1.04

Negative slope indicates a negative linear coorelation

Hence b

A is independent and B is dependent.