Which of the following is a property of the t distribution?

Besides random sampling, what conditions are necessary for the sampling distribution of the sample proportion to be approximately Normally distributed? (There may be more than one answer. Please check all that apply.)

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?

For Ho:p = 0.60 versus Ha: p does not equal 0.60, when the test statistic equals 1.54, what is the p-value?

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?  

In the 2012 presidential election, 57.5% of eligible voters cast their vote. Suppose that 200 randomly selected eligible voters were asked if they had voted in the 2012 presidential election. What approximate distribution would you expect for the sampling distribution of the sample proportion of Americans who voted in the 2012 presidential election?  

Suppose that you wanted to estimate the population mean amount spent on soft drinks purchased at vending machines by UF students per day. In 2010, a survey found the sample standard deviation was 5 dollars. What sample size would you need to collect in order to make a 95% confidence interval with a margin of error of 0.50 dollars?

For a 95% confidence interval for the population mean, what value of t would you use? n = 15

Your friend decided to survey to find out how many Americans have blue eyes. She surveyed 200 randomly selected people and asked them if they have blue eyes. What would be the parameter that she could estimate with this data?

According to the Georgia department of Labor, as of May 2011, the average salary of all Georgians was 46,007 dollars. Someone who didn’t know this took a sample of 100 working Georgians and averaged their salaries. For the 100 people, the average salary was 46,780 dollars. Match the following terms with their amounts