Question

The student council at Eleanor Roosevelt High School is taking a survey of student opinions on this year's homecoming theme. To decide who to survey, the council creates a master alphabetized list of names from every student in the school, then selects every 20th student from the list. Will the results of this survey be valid? Why or why not?

Answer 1

The survey conducted by the student council at Eleanor Roosevelt High School may not result in a valid sample because the method used to select students is not a random or representative sample. A random sampling method should be used to obtain a valid sample.

Step-by-step explanation:

The survey conducted by the student council at Eleanor Roosevelt High School may not result in a valid sample because the method used to select students is not a random or representative sample. By selecting every 20th student from an alphabetized list, the survey may introduce bias into the results, as certain groups of students may be overrepresented or underrepresented in the sample. In order to obtain a valid sample, a random sampling method should be used, such as selecting students through a lottery system or using a random number generator.

Answer 2

No

Step-by-step explanation:

It largely depends on required margin of error but I would say that the tested population size is going to be too small.