Suppose MyBook has roughly 1,000,000 users, and as each member signs up for an account, he or she is assigned a number. Which of these would result in the smallest sample size using systematic sampling? A. Surveying every 25,000th number B. Surveying every 250th number C. Surveying every 25th number D. Surveying every 2500th number

Answer: A. Surveying every 25,000th numberStep-by-step explanation: If the numbers of people are assigned in order of 1 to 1 000 000 then the smallest sample would be obtained by conducting surveys every 25 000th numbers. The calculation of the sample size would be made by dividing 1 000 000 by 25 000. [tex]\frac{1000000}{25000}= 40[/tex] Therefore, the smallest sample selected would be 40 people.

If the surveys were made every 25th numbers, then the sample size would be: [tex]\frac{1000000}{25}= 40000[/tex] people