Problem: A researcher in Wonderland has conducted a study that examines the relationship between work hours and job satisfaction.
The relationship between average weekly work hours and job satisfaction of the workers in Wonderland was estimated as below in a linear format.
(Job satisfaction is measured through a five-point scale: 1 = Extremely unsatisfied, 5 = Extremely satisfied)
Job satisfaction = -0.09 * work hours + 6.74
(The p-value for the coefficient of work hours is 0.02.)
Based on this equation, what is the expected job satisfaction level of a worker in Wonderland who works about 55 hours per week?