Stats Chapter 1-4 FINAL

Front

What is a matched pairs design?

Back

A matched pairs design is an experimental design used to compare 2 treatments by pairing similar experimental units.

Front

True or False: Probability can be predictable and stable in the short run?

Back

False

Front

What is a block in experimental design?

Back

A block is a group of experimental units that are known before the experiment to be similar in some way that is expected to affect the response to the treatments.

Front

What is a single blind experiment?

Back

In a single blind experiment, the subjects do not know which treatment they are receiving.

Front

What type of correlation exists between temperature and hot chocolate sales at a football game?

Back

Negative correlation.

Front

Define probability.

Back

Probability is a measure of the likelihood that an event will occur, expressed as a number between 0 and 1.

Front

What is the purpose of randomization in experiments?

Back

Randomization helps eliminate bias by ensuring that each experimental unit has an equal chance of receiving any treatment.

Front

What is the difference between qualitative and quantitative data?

Back

Qualitative data describes characteristics or qualities, while quantitative data represents numerical values.

Front

What is a control group?

Back

A control group is a group in an experiment that does not receive the treatment and is used as a benchmark to measure how the other tested subjects do.

Front

What is the significance of a p-value in hypothesis testing?

Back

A p-value indicates the probability of obtaining test results at least as extreme as the observed results, assuming that the null hypothesis is true.