Chapter 11.2, Problem 17E

To determine

To explain:

The error of the image of the high school survey and correct

Answer to Problem 17E

The sample size of $965$ students is error of the given survey statement. The correct sample size is of $1270$ students.

Explanation of Solution

Given information:

  

From the image given:

There is sample of the $965$ students who felt added stress. So, the error of the survey is the selection of the wrong sample.

Now, the correct method is:

The problem states that:

There are total $1270$ for which the survey is taken. That means for the survey, the sample size is $1270$ students of the high school. Now, from $1270$ students who felt added stress are $965$ students because of their workload. Remaining students are those who does not feel any added stress.