Your company takes orders over the phone. The company’s average call time is 4.6 minutes. The graph below shows 4 calls and the difference between the call time and the company’s average call time. For these 4 calls, what is the mean difference between the call times and the company’s average call time, rounded to the nearest 0.1 minute?

Acompany manufactures large valves, packed in boxes. a shipment consists of 1500 valves packed in 75 boxes. each box has the outer dimensions 1.2 x 0.8 x 1.6 m and the inner dimensions 1.19 x 0.79 x 1.59 m. the boxes are loaded on a vehicle (truck + trailer). the available capacity in the vehicle combination is 140 m3. each valve has a volume of 0.06 m3. - calculate the load factor on the box level (%). - calculate the load factor on the vehicle level (%). - calculate the overall load factor (%).