The data below are the final exam scores of  10 randomly selected statistics students and the number of hours they slept the night before the exam. Calculate the equation of the least squares line. Hint:   =6 and    =80. Round the estimates and slope and y-intercept to 2 decimal places.  n = 10  Σx = 60  Σy = 800  Σx 2=385.6  Σy 2 = 75560 Σxy = 5262.4

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