Researchers studied the mean egg length (in millimeters) for a bird population. After taking a random sample of eggs, they obtained a 95% confidence interval of (45,60). What is the value of the margin of error?
Since we know that the interval is of the form MOEx±, we have that 45 = MOEx−and 60 = MOEx+.by solving this system of equations, we find that MOE = 7.5
