Explain the principles of bi-partisanship.

The arizona department of transportation wishes to survey state residents to determine what proportion of the population would like to increase statewide highway speed to 75 from 65 mph. at least how many residents do they need to survey if they want to be at least 99% confident that the sample proportion is within 0.09 of the true proportion?

When analyzing the election of 1876, what conclusion can be drawn? a. a majority of northerners wanted to enforce reconstruction policies more stringently. b.if tilden had won the electoral votes from louisiana, florida, or south carolina, he would have been elected president. c.the republican party had increased its support in the south. d.rutherford hayes did poorly in the western states. e.the republican party did a good job protecting the voting rights of african-americans in mississippi.

Micah is studying child behavior in playgrounds throughout the world. he wants to see how the children react when teachers select the same child to be the first to use each piece of equipment. which approach is micah is using?