sampling

Question 1

what is a sample?

Answer 1

A sample is a group of people, objects or items that are taken from a larger population for measurement

Question 2

what is a population?

Answer 2

a population is the entire group that you want to withdraw conclusions about

Question 3

what is random sampling?

Answer 3

takes a random portion of a population to represent the entire data set, where each member has an equal probability of being chosen

Question 4

what is a representative sample?

Answer 4

is a subset of a population that seeks to accurately reflect the characteristics of the larger group

Question 5

what is sample integrity?

Answer 5

refers to the reliability or the quality of the sample being tested

Question 6

how must the sample be?

Answer 6

must be in a sealable, leak proof secondary container with a biohazard label. the package must not absorb moisture or fat, air tight closure

Question 7

what is addition of preservatives?

Answer 7

a preservative is a substance of a chemical that is added to samples, drugs to prevent decomposition or undesirable chemical changes