The Isotope Has a Half-Life of 21 Hours

question 50

Multiple Choice

The isotope has a half-life of 21 hours. If a sample initially contains exactly 10000 atoms of , approximately how many of these atoms will remain after one week?

• A) 1250
• B) 78
• C) 39
• D) 0
• E) none of the above

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Definitions:

One-Way ANOVA

A statistical test that determines whether there are statistically significant differences between the means of three or more unrelated groups.

Treatment

A specific condition or intervention applied in a research study to observe its effects on an outcome of interest.

Research Hypotheses

Statements made by researchers which predict a relationship or difference between variables in a study.

Main Effect

Refers to the primary influence of an independent variable on the outcome measure, without considering interactions with other variables.