Construct the 95% confidence interval for the proportion of students with at least one injury.
Self-reported injuries between left handed and right handed people were compared in a survey of 1896 college students in British Columbia, Canada. 93 of the 180 left handed students reported at least one injury and 619 of the 1716 right handed student reported at least one injury in the same period. Calculate the95% confidence interval for the proportion of students with at least one injury for each of the two subpopulation, left handed student and right handed student.