Student debt has been rising for the past couple of decades. For all students who have graduated college since the year 2000, of interest is to determine the mean student debt of these students at the time of graduation. In this scenario, what is the population of interest?

For all students who have graduated college since the year 2000, of interest is to determine the mean student debt of these students at the time of graduation. Using both the appropriate symbol and in words, what is the parameter of interest?You may give the actual symbol (for example

) or write the name of the symbol in words (for example, "sigma").

It is conjectured that the mean student debt at the time of graduation for all students who have graduated college since the year 2000 was $18,350. Based on this, using the symbol specified in question 2, what hypothesis do we want to test

Consider the information presented in question 1. What type of characteristic is mean student debt of all college students who graduated for each year since 2000?

Categorical variable

Constant

Continuous quantitative variable

Discrete quantitative variable

Consider the information presented in question 1. Suppose it is known that among all students who have graduated college since the year 2000, 47.6% did so with no student debt. In this scenario, is 47.6% an example of a parameter or a statistic?

Statistic

Parameter

Since student debt has been growing, the population of students was divided into four groups: those who graduated between 2000 and 2004; those who graduated between 2005 and 2009; those who graduated between 2010 and 2014; and those who graduated between 2015 and 2019. Suppose a sample of 48 students who have graduated college since the year 2000 is selected, as follows. For each of the four groups of graduates, 12 graduates are chosen. What type of sampling procedure is this an example of?

Haphazard sampling

Simple random sampling

Volunteer response sampling

Multistage random sampling

Stratified random sampling

The major that each graduating student studied is what type of characteristic?

Constant

Categorical variable

Continuous quantitative variable

Discrete quantitative variable

The population is the same as described in question 1. Now, however, for all students who have graduated college since the year 2000, of interest is to determine the proportion who graduated with no student debt. Based on this information, using both the appropriate symbol and in words, what is the parameter of interest? You may give the actual symbol (for example

) or write the name of the symbol in words (for example, "sigma").

Suppose that for each year from 2000 through 2019, the proportion of graduating students who graduated with no student debt was calculated. Based on this, the proportion of graduating students who graduated each year with no student debt is what type of characteristic?

Discrete quantitative variable

Constant

Categorical variable

Continuous quantitative variable