The mean percentage of a population of people eating out at least once a week is 57% with a standard deviation of 3.50%. assume that a sample size of 40 people was surveyed from the population a significant number of times. in which interval will 68% of the sample means occur?

Solve - pv + 40 < 65 for v solve 7w - 3r = 15 for r

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 (%).

Which graph represents the function g(x) = |x + 4| + 2?