Cause-And-Effect Conclusions Can Be Drawn from the Results of an Experiment

question 73

Multiple Choice

Cause-and-effect conclusions can be drawn from the results of an experiment because:

• A)it is almost always performed in a laboratory setting.
• B)statistical analysis can be applied to data from an experiment.
• C)the independent variable is manipulated while other possible causes of change in the dependent variable are held constant.
• D)several groups of subjects,not just one sample,are typically investigated in a laboratory experiment.

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Definitions:

Forging Process

The forging process is a metalworking technique involving the shaping of metal using localized compressive forces, such as hammering or pressing.

S Chart

A type of control chart used to monitor the variability within a sample, especially for processes that involve subgroups.

Three-Sigma Control Chart

A statistical tool used in quality control to monitor process variations, typically using a band of three standard deviations from the mean to identify outliers.

Standard Deviation

A measure of the amount of variation or dispersion of a set of values; a low standard deviation means that the values tend to be close to the mean.