The researchers from exercise 2 want to test if the proportions of satisfied employees are the same at for-profit companies as at not-for-profit companies. what is the difference in the proportions of the two types of companies?

What are the solutions of the equation? 6x^2 + 11x + 4 = 0 a. 4/3, 1/2 b. -4/3, -1/2 c. 4/3, -1/2 d. -4/3, 1/2

The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a mean of $235 and a standard deviation of $20. according to the standard deviation rule, how much did almost all (99.7%) of the students spend on textbooks in a semester?

An elevator travels 310 feet in 10 seconds. at that speed, how far can't his elevator travel in 12 seconds?