Question

Mr. Dotson wants to know if the neighbors on his street

would be interested in a community watch. He surveys

every fourth household on the street and concluded that

70% would be interested.

Determine whether each conclusion is valid.

Answer 1

Answer:

It is valid because it is a systematic random sample.

Explanation:

In Systematic random sampling it involves the random sampling method which also involves selecting of samples on the premix/basis on a system of intervals in a numbered population. It is also a way/means samples selection at a particular preset interval.

It can be broken down into steps examples

1.calculate and quickly fix the sampling interval. (The number of elements in the population divided by the number of elements needed for the sample.)

2 Take a random starting point between 1 and the sampling interval.

3. repeat the sampling interval to choose subsequent elements.