The data below are the temperatures on randomly chosen days during a summer class and the number of absences on those days. Construct a 95% confidence interval about the slope of the true least-squares regression line, for the data below, given that y=0. 449-30. 27
Temperature x: 72,85,91,90,88,98,75,100,80
#of absences y: 3, 7, 10,10, 8, 15, 4, 15, 5
a) (-1. 760, 2. 658)
b) (0. 385, 0. 513)
c) (0. 367, 0. 530)
d) (0. 371, 0. 527)