Mr Thompson runs his own printing and bookbinding business. he suspects that the machine isn’t putting enough glue into the book spikes and decided to inspect his most recent order of 70 textbooks to test his theory. He numbers them 1-70 and using the random digit table printed below : 81232 43939 84583 23480 05995 A)select a simple random sample of 5 book ? B) if a sample isn’t randomly selected, what kind of sampling bias will be created ??

Okay so n is going to represent our first number. since the second number of five times greater than n, the second number will be represented as 5n. for us to figure out the two  numbers we need to have  the value of n first. this is going to be done by adding the two numbers together, n and 5n. it can be simplified as 6n, which the problem states is equal to 72. divide 72 by 6n and you can solve for n.  n+5n=726n=72n=(72/6)n=12  now that we know the value of n, we have to multiply 5 times 12 which equals 60. so our two numbers/integers are 12 and 60