Question

Please help.

Mr. Jones plans to open a shop selling organic food in a small town. He would like to survey the townspeople to find out if they will be interested in organic food. The town had about 6000 households along 20 streets. Mr. Jones has asked you to help him to conduct the survey, but he does not want a simple random sampling method.


A) Explain why Mr. Jones does not want a simple random sampling method.

B) Describe how you can carry out the survey using a systematic random sampling method.

C) Describe how you can carry out the survey using a stratified random sampling method.

Answer 1

A) Too many samples (people) are taken simple random sampling is not suitable fro sampling with large sample size.

B) First, the total number of people in order and divided into equal numbers of groups, and then from each group in mechanical order to extract objects.

C) The total number of people was divided into 3 categories, teenagers, middle-aged, elderly, according to the proportion of each type and the total people, the samples selected from each type was determined. Finally, samples were selected from each type according to the principle of randomness.

Hope this helped! Have a wonderful night!