A company is trying to determine if they should accept a shipment of toy parts. The shipment has over 1 million parts. They decided to randomly select 100 parts out of the shipment. They will only accept the shipment if 1% or less of all of the parts are defective. Out of the 100 selected, 4% are defective. Identify the numbers "1%" and "4%" as either statistics or parameters. Group of answer choices

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particle’s acceleration positive? (round one decimal place and answer in interval notation) e. when is the particle’s acceleration negative? (round one decimal place and answer in interval notation)