Brett is performing a hypothesis test in which the population mean is 310 and the standard deviation is 20. His sample data has a mean of 295 and a sample size of 50. Which of the following correctly depicts the z-statistic for
Brett's data?
-5.30
-0.11
4.28
6.27

If jaime wants to find 60% of 320, which table should he use?

The human resources manager at a company records the length, in hours, of one shift at work, x. he creates the probability distribution below. what is the probability that a worker chosen at random works at least 8 hours? probability distribution px(x) 6 hours 7 hours 8 hours 9 hours 10 hours 0.62 0.78 пол

Out of 50 students surveyed, 16 have a dog. based on these results, predict how many of the 280 students in the school have a dog.