Gallup is a company that carries out daily opinion polls on a variety of topics. In a recent daily poll of 1,000 randomly selected US adults, 334 said they were engaged at work.
Based on this sample, which of the following is a 90% confidence interval for the proportion of all US adults
who would say they are engaged at work?

Which ordered pair is a solution to the system of linear equations? 2x + 3y= 6 –3x + 5y = 10

In the triangles, tr = ge and sr = fe. if = 3.2 ft, which is a possible measure of ? 1.6 ft 3.0 ft 3.2 ft 4.0 ft

An automobile assembly line operation has a scheduled mean completion time, μ, of 12 minutes. the standard deviation of completion times is 1.6 minutes. it is claimed that, under new management, the mean completion time has decreased. to test this claim, a random sample of 33 completion times under new management was taken. the sample had a mean of 11.2 minutes. assume that the population is normally distributed. can we support, at the 0.05 level of significance, the claim that the mean completion time has decreased under new management? assume that the standard deviation of completion times has not changed.