The relative growth rate of world population has been decreasing steadily in recent years. On the basis of this, some population models predict that the world population will eventually stabilize at a level that the planet can support. One such logistic model is: P(t) = 73.2 6.15 + 9e−0.2t , where t = 0 is the year 2000 and population is measured in billions. (a) (3 points) What would population does this model predict for the year 2100? (b) (3 points) What would population does this model predict for the year 2300? (c) (4 points) Evaluate P(t) for large values of t. According to this model, what size does the world population approach as t →

Select the margin of error that corresponds to the sample mean that corresponds to each population: a population mean of 25, a standard deviation of 2.5, and margin of error of 5%

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?

Percent increase and decrease. original number: 45 new number: 18