Question

Tell whether each of the following is a population, sample, parameter, or statistic.2) Suppose you want to know the average amount of time a student spends on homework in a week. There are toomany students so you survey only 120 of them. Of the 120 students, the average time spent on homework in a week is 6 hours

Answer 1

Given:

Sample size = 120

Average for the sample = 6 hours

Let's determine the following:

• (a). 6 hours:

6 hours is the average time spent on homework in a week.

Since it is the average time for the sample, we can say 6 hours is the sample mean which represents the statistics.

• (b). The average amount of time spent on homework by all students.

The average time for all students which is the total population will represent the parameter.

• (c). 120 students.

In this situation since 120 students are drawn from the population, it represents the sample size.

• (d). All students.

All students can be said to be the population from which the sample was drawn from.

ANSWER:

• (a). Statistics

,

• (b). Parameter

,

• (c). Sample

,

• (d). Population