The state of michigan has just changed one of its toll roads from human collection of tolls to machine collection. the idea behind the change was to allow traffic to flow more smoothly through the toll plaza. with human attendants, the mean number of cars passing through the toll plaza was 1,253 per hour. a random sample of 100 hours under the new machine system of toll collection shows a mean of 1,261, with a standard deviation of 59. present a hypothesis and a null hypothesis, and evaluate them. state a conclusion in plain english.

answer: i guess 5 units?

step-by-step explanation:

they charge the same amount at 20 minutes.

step-by-step explanation:

well if he bought them at 5 cedis each sold them at 7 cedis each then he would make a profit of 2 cedis of each book. if in total he made 150 cedis profit that means he sold 75 books. he lost 12 books at the start so that means he originally bought a total of 82 books.

step-by-step explanation:

a mantle plume is an upwelling of abnormally hot rock within the earth's mantle. as the heads of mantle plumes can partly melt when they reach shallow depths, they are thought to be the cause of volcanic centers known as hotspots and probably also to have caused flood basalts.

step-by-step explanation: