University:
McNeese State University
Course:
MATH 231 | Elementary Probability and Statistical Inference
Academic year:

2024
Views:

473

Pages:

1
Author:

Tori K.

Math 231 1-3 Data Collection and Experimental Design Baldwin Even with the best method of sampling, a sampling error may occur. A sampling error is the difference between results of a sample and those of the population. A random sample is one in which every member of the population has an equal chance of being selected. A simple random sample is a sample in which every possible sample of the same size has the same chance of being selected. • Random numbers can be generated by random number table, a software program or calculator. • Assign a number to each member of the population. • Members of the population that correspond to those numbers become members of the sample. Example 3: Using a Simple Random Sample There are 731 students currently enrolled in statistics at your school. You wish to form a sample of eight students to answer some survey questions. Select the students who will belong to the simple random sample. Since is 731 3-digit a on the table . Place the at start Let's > 719 Be he , 662 sure first assigned , <38 to , 650 to , ignore eight 004 numbers , , 053 , are will a random starting 29/01/18544 , 403 greater , Choose . column 589 719 3-digits want we os$o gosp numbers number these 2nd 3-row ! 119ku