For a 99% confidence interval for the population mean, what value of t would you use? n = 17

The average salary for an exercise specialist is $41,000. The standard deviation is about $3000. Suppose that a sample of 10 was taken, what is the approximate distribution of the sampling distribution of the sample mean?

In the United States, 30% of all Americans have a college degree. Suppose that your friend took a random sample of 100 people and found that 34% of the sample had a college degree.  Match the following terms.

For Ho:p = 0.60 versus Ha: p does not equal 0.60, when the test statistic equals 1.74, what is the p-value?

In the Congo, the infant mortality rate is 5.934%. Suppose that a random sample of 1000  births was conducted. What is the probability that the infant mortality rate in the sample was less than 5.1%?

Suppose that you wanted to estimate the population mean amount spent eating out per week by Gainesville families. In 2010, a survey found the sample standard deviation was 150 dollars. What sample size would you need to collect in order to make a 95% confidence interval with a margin of error of 17 dollars?

Suppose that you wanted to conduct a survey and sample UF students. Suppose you wanted to ask them how many of them planned on getting a meal plan for the Fall semester. In previous year, the proportion of students with a meal plan has been around 0.40. Suppose you want to be 95% confident and have a margin of error of 0.05. What size sample 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?

According to the Georgia department of Labor, as of May 2011, the average salary of all people living in Atlanta was 55,733 dollars. Someone who didn’t know this took a sample of 50 working people in Atlanta and averaged their salaries. For the 50 people, the average salary was 56,771 dollars. Match the following terms with their amounts

A survey of 30 randomly selected people from Gainesville were asked if they planned on moving in the next year. Out of 30 people, 12 said yes. Can you make a 95% confidence interval for the population proportion?