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Dr. Smith is interested in how lead exposure early in life predicts academic achievement later in life. He gathered data from n=100 high school graduate
Dr. Smith is interested in how lead exposure early in life predicts academic achievement later in life. He gathered data from n=100 high school graduate on their grading GPA, and the number of months they lived in a house with lead paint while under 5 years old. He calculates: GPA(Y) My=3.0 , SSy=100 , Lead Exposure (X) and=5 months , SSx=250 , SP= -50 , r= -0.316 . If you wanted to test the significance of this regression equation (=.05), what would the critical value of F be? What is the observed F value for this regression equation
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