A population mean is 13. The sample mean is 12.8, and the sample standard deviation is 2. The sample size is 20. What distribution should you use to perform a hypothesis test

Over the last 8 nights, elyse earned the following in tips: {105, 120, 84, 95, 100, 132, 140}. if she earns $140 a night for the next four nights, which measure of center would increase more, the mean or median?

Find the greatest common factor of the followig monomials 21u^5v,3u^4v^6, and 3u^2v^5

Identify the conclusion of the conditional statement. if you live in phoenix, then you live in arizona.