Question

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? a. the mean loan debt of all college students who graduate college. b. the proportion of all college students who graduate college in debt. c. the mean salary of all college students who graduate college. d. the standard deviation of loan debt of all college students who graduate college.

Explanation:

Step1: Recall point - estimate concept

A point - estimate is a single value used to estimate a population parameter. The sample mean is a point - estimate of the population mean.

Step2: Analyze the survey question

The survey question is about the amount of student loan debt. The value $42,576$ is the sample mean of student loan debt. So it is a point - estimate of the mean loan debt of the population.

Answer:

A. The mean loan debt of all college students who graduate college.