In the year 2014, according to salary.com, physical therapis…

In the year 2014, according to salary.com, physical therapists in Jacksonville, Florida have an average annual salary of 75,000. The standard deviation is about 6,000 dollars. Suppose that a sample of 15 physical therapists is taken from Jacksonville, Florida. What is the sampling distribution of the sample mean?  

Suppose that you were going to take a sample of UF students….

Suppose that you were going to take a sample of UF students. You were interested in estimating the proportion who had at least one non-related roommate. You were uncertain what this proportion was; however, you wanted to be 95% confident with a margin of error equal to 0.034. What sample size do you need?

Suppose that 60% of Americans planned to vote in the next el…

Suppose that 60% of Americans planned to vote in the next election. You take a random sample of 32 people and ask them if they plan on voting in the next presidential election.  What approximate distribution would you expect for the sampling distribution of the sample proportion of Americans who planned on voting?