A researcher conducted a survey of graduating college students. 350 college students were randomly selected to answer the survey. One of the survey questions asked, “How much do you owe in student loans?” The average student loan debt reported by respondents was $42,576 with a standard deviation of $2,801.$42,576 is the point estimate for which of the following? The mean salary of all college students who graduate college. The standard deviation of loan debt of all college students who graduate college. The proportion of all college students who graduate college in debt. The mean loan debt of all college students who graduate college.

The Department of Education would like to test the hypothesis that the average debt load of graduating students with a bachelor’s degree is equal to $15,600. A random sample of 40 students had an average debt load of $16,800. It is believed that the population standard deviation for student debt load is $4,400. The α is set to 0.05. The confidence interval for this hypothesis test would be __________.

A national poll by the Institute for College Access and Success showed that in 69% of college graduates from public and nonprofit colleges in 2013 had student loan debt. Dr. Blackman wanted to find out if her public nonprofit university had a lower proportion of students who graduated with student loan debt in 2013.For this survey, the null hypothesis was that the proportion of students with graduated with student loan debt equals 69% and the alternative hypothesis is that the proportion with student loan debt does not equal 69%. The significance level for this test was 0.05.The results of the hypothesis test of the new survey showed a p-value of 0.039.Which of the following statements is correct? Check all that apply. The results were statistically significant. The results were not statistically significant. The null hypothesis should be rejected. The null hypothesis should be accepted. The null hypothesis cannot be rejected.

Does going to a private university increase the chance that a student will graduate with student loan debt? A national poll by the Institute for College Access and Success showed that in 69% of college graduates from public and nonprofit colleges in 2013 had student loan debt.A researcher wanted to see if there was a significant increase in the proportion of student loan debt for public and nonprofit colleges in 2014. Suppose that the researcher surveyed 1500 graduates of public and nonprofit universities and found that 71% of graduates had student loan debt in 2014.Let p be the proportion of all graduates of public nonprofit universities that graduated with student loan debt. What are the appropriate null and alternative hypotheses for this research question?

ased on survey results, the mean amount of credit card debt for U.S. adults under 35 is $8,724. This point estimate would be unbiased and most accurate if the survey were based on which of the following? A random sample of 1,500 U.S. adults under 35 A random sample of 2,800 U.S. adults under 35 A random sample of 3,000 U.S. college students A national television news station poll with 3,500 responses

A survey of 8 university student revealed a mean income of $180.98 with a standard deviation of $143.042. Calculate a 95% confidence interval for the mean income of all students: