Required information A fatigue test is performed on rotating beam specimens where, for each rotation cycle, the specimens experience tensile and compressive stresses of equal magnitude. The cycles-to- failure experience with 69 specimens of 5160H steel from 1.25-in hexagonal bar stock was as follows: xi 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 f 213 5 8 12 6 10 852 3 210 where x, is the life in thousands of cycles and fis the class frequency of failures. 1 NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. Presuming the distribution is normal, how many specimens are predicted to fail at less than 85 kilocycles? Presuming the distribution is normal, specimens are predicted to fail at less than 85 kilocycles.