Horizon’s is an airline making decisions about purchasing new airplanes in 2020. They need to decide how many small airplanes to purchase and how many large airplanes to purchase. The

airplane wants their new planes to have a capacity for at least 3,300 people. The airline has

resources for at most 300 hours of maintenance each month. Each small airplane carries 55

people and requires 5 hours of maintenance each month. Each large airplane carries 220

people and requires 10 hours of maintenance each month. Due to demand, Horizon has

decided that their fleet can have no more than 20 new large airplanes. Each small airplane

costs $14,000,000 and each large airplane costs $40,000,000. In order to minimize costs, how

many of each type of airplane should Horizon’s purchase?

It appears that people who are mildly obese are less active than leaner people. one study looked at the average number of minutes per day that people spend standing or walking. among mildly obese people, the mean number of minutes of daily activity (standing or walking) is approximately normally distributed with mean 376 minutes and standard deviation 64 minutes. the mean number of minutes of daily activity for lean people is approximately normally distributed with mean 528 minutes and standard deviation 107 minutes. a researcher records the minutes of activity for an srs of 7 mildly obese people and an srs of 7 lean people. use z-scores rounded to two decimal places to answer the following: what is the probability (image for it appears that people who are mildly obese are less active than leaner people. one study looked at the averag0.0001) that the mean number of minutes of daily activity of the 6 mildly obese people exceeds 420 minutes? what is the probability (image for it appears that people who are mildly obese are less active than leaner people. one study looked at the averag0.0001) that the mean number of minutes of daily activity of the 6 lean people exceeds 420 minutes?