What is an alternative hypothesis and a null hypothesis?
The null hypothesis refers to the supposition that the variation you see within a set of data is that way due to random chance. The alternative hypothesis supposes that there’s a reason that some stuff turned up differently from others. For example. One city has two sports teams. Each team has been around for about the same amount of time, but one team has 10 championships while the other has 2. (You can use pretty much any numbers you want for the example. It could be 6 and 5 if you wanted. Whatever). The null hypothesis states that each team has the same chance of winning the championship in any given year and that one team just got lucky a few more times than the other. The alternative hypothesis would give a set of reasons for why the team with more championships has a better chance of winning than the team with fewer championships. One more example. Blue smurfs and green aliens take an intelligence test. The mean and median scores for one group is a bit higher for one group than t