The Following Data Contains Task Completion Times, in Minutes, Categorized

question 45

Essay

The following data contains task completion times, in minutes, categorized according to the gender of the
machine operator and the machine used. Assume that two-way ANOVA is used to analyze the data. How are the ANOVA results affected if the times
are all doubled?

---

Definitions:

Untreated Population

A segment of the population that has not received a particular intervention, treatment, or exposure, used as a comparison group in studies and experiments.

Treatment Group

A group of subjects in an experimental study that receives the treatment or intervention being tested, as opposed to a control group that does not.

Placebo Group

A control group in an experiment that receives a sham or inert treatment, allowing researchers to measure the effect of the actual treatment against no treatment.

Significance Level

A threshold set by the researcher before an experiment to decide whether to reject the null hypothesis, typically denoted by alpha (α).