Exam 10: Predicting Data

The plus or minus number that is added to (and subtracted from) the result that you have calculated is referred to as what?

It is important that the _______ selected from the population retains the essential characteristics of the population.

Statistical __________ is a measure of how likely that the results were simply by chance as opposed to being a statistical association.

The ________ your sample size, the _______ your standard error.

Which type of probability sampling divides the population into groups of similar patients, and studies a set number of members within each group?

The greatest number of responses for a normal curve are gathered around the _________.

Most confidence levels are set to what percentage?

The alpha level for a study is 0.05 and the p-value after running the data calculations was 0.02. What decision can you make?

Which type of general sampling does not seek to avoid bias and selects groups nonrandomly?

Which type of statistics allows us to make generalizations about a population from a sample?

The ______ hypothesis states that there is no difference between the variables being studied.

Patients are being studied for their satisfaction within a physician practice. The strata divide these patients into groupings by the variables of age, sex, insurance type, and physician. The strata are then used for a random selection of patients to assure an even selection for the variables in question. Which type of sampling is this an example of?

Which type of sampling is used when the subject under study is difficult to find?

If a data analyst is asked to examine the relationship between the incidence of pressure ulcers and length of stay; the _________ would have to include all patients who had ever had a pressure ulcer.

Normal curves are also called what?

Which type of statistics allows us to make predictions from sample data?

What is used to measure the difference between the means of samples of the population?

What is used to measure how different the scores are in the population?

If the standard error of those means is _________, then the sample means are very different from each other.

Which type of probability sampling allows the choice of patient to be the nth number of a population?