The health professional wants to estimate the mean change in the stress level with the help of a linear regression t-interval for slope.
The regression t-test is used to determine whether the slope, β1, of the human descent line, is equal to 0. Based on that test we can determine if x is a useful (direct) prediction of y.
A t-test is a mathematical test used to compare methods of two groups. It is often used in hypothesis tests to determine whether a procedure or treatment affects the number of people interested in it, or whether two groups are different from each other.
Thus, The health professional wants to estimate the mean change in the stress level with the help of a linear regression t-interval for slope.
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