MODULE 12

Question 1

is a branch of Mathematics used to summarized, organiza, present, analyze and interpret numerical data such as the numerical characteristics of sample parameters and the numerical characteristics of a population.

__ improve the quality of data with the design of experiments and survey sampling. ___ also provide tools for prediction and forecasting using data and statistical models. ___ is applicable to a wide variety of academic disciplines, including natural and social science, government business and nursing.

Answer 1

Statistics

Question 2

Statistical methods can be used to summarize or describe a collection of data, this is called ____. This is useful in research, particularly when communicating the results of experiments.

Answer 2

descriptive statistics

Question 3

randomized and uncertainty in the observations may be used to draw inferences about the process or population being studied, this is called

Answer 3

inferential statistics

Question 4

is a vital element of scientific research, since it will predict a phenomenon based on data leading to theory development.

Answer 4

Inference

Question 5

Descriptive statistics and inferential statistics or predictive statistics together compare .

Answer 5

applied statistics

Question 6

are statistics intended to organize and summarize numerical data from the population and sample.

Answer 6

Descriptive Statistics or Summary Statistics

Question 7

These are concerned with population and the use of sample data to predict future occurrences

Answer 7

Inferential statistics

Question 8

which is the difference between data obtained from a random sampled population and data that would be obtained if an entire population is measured. ____ also occurs when the sample does not accurately reflect the population.

Answer 8

Sampling error

Question 9

___ is a theoretical frequency distribution based on an infinite number of the samples. The researcher never actually draws an infinite number of samples from a population

Answer 9

Sampling distribution

Question 10

occurs when samples are not carefully selected as in non-probability sampling

Answer 10

Sampling bias

Question 11

This is a theoretical frequency distribution of all possible value in a population although no real distribution exactly fits the normal curve

Answer 11

Normal curve

Question 12

usually assume that an extreme score (the group with extreme score do not belong to the same population) can occur in either tail of the normal curve.

Answer 12

Non-directional hypotheses

Question 13

is the test for directional hypothesis and the extreme statistical values that occur on a single tail of the curve.

Answer 13

One-tailed test of significance

Question 14

is the analysis of a non-directional hypothesis. This requires the researcher to have sufficient knowledge of the variables to predict whether the difference will be in the tail above the mean or the tail below the mean (Burns & Grove, 2007

Answer 14

Two-tailed test of significance

Question 15

is the analysis of a non-directional hypothesis. This requires the researcher to have sufficient knowledge of the variables to predict whether the difference will be in the tail above the mean or the tail below the mean (Burns & Grove, 2007

Answer 15

Two-tailed test of significance