QUESTION 1 The next two questions relate to the following information. An \"age

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QUESTION 1 The next two questions relate to the following information. An "age equivalence" score is the age at which children from the general population have gained certain skills. Researchers measured the balancing ability of a sample of a specific group of children. The children's age is plotted on the horizontal axis of the figure below. On the vertical axis is the children's age equivalence score, or the apparent age of the child, based on their balancing ability. 16 S 14 u 12 4 10 4 2 4 6 8 10 12 14 16 Chronological age (yr) Figure; The apparent age of a child, based on their balancing ability versus the actual age of the child. The solid line is the population mean The researchers wish to test whether the balancing ability of the children in the sample changes with age. The null hypothesis will be about the slope of the regression line, What might the null hypothesis be? ?

Explanation / Answer

Question 1: Null hypothersis beta=0

If there is a significant linear relationship between the independent variable X and the dependent variable Y, the slope will not equal zero. The null hypothesis states that the slope is equal to zero, and the alternative hypothesis states that the slopeis not equal to zero.

Question2: Null hypothese beta1=beta2

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