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A nurse is interested in whether there is a relationship between daily levels of stress and likelihood of a heart

attack. The stress scores (predictor variable) and risk of heart attack values (criterion variable) from a small sample of participants are depicted below. (Values below are valid for this question only!)

Stress Score                               Risk of Heart Attack

(Higher values = more stress)     (Higher values = greater risk)


   8                                                     2

     5                                                     4

     9                                                     8

     8                                                     6

What is the numeric value of the y-intercept (a)?

Top Answer

Here, Y = stress scores and X = Risk of Heart Attack From the data, n = sample size =4... View the full answer

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