Three confidence intervals for the mean shear strength (in ksi) of anchor bolts of a certain type are computed, all from the same sample. The intervals are (4.01, 6.02), (4.20, 5.83), and (3.57,...

Three confidence intervals for the mean shear strength (in ksi) of anchor bolts of a certain

type are computed, all from the same sample. The intervals are (4.01, 6.02), (4.20, 5.83),

and (3.57, 6.46). The levels of the intervals are 90%, 95%, and 99%. Which interval has

which level?