In an Analysis of Variance with a Between-Groups Population Variance

question 47

Multiple Choice

In an analysis of variance with a between-groups population variance estimate of 30 and a within-groups estimate of 25,the F ratio is

• A)25 / (30-25)= 5.00
• B)(30-25)/ 30 = 0.17
• C)25 / 30 = 0.83
• D)30 / 25 = 1.20

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Definitions:

Full Moon

The lunar phase when the Moon appears fully illuminated from Earth's perspective, occurring when the Earth is located directly between the Sun and the Moon.

Random Sampling

A method of sampling that gives every member of a population an equal chance of being selected, ensuring the sample is representative of the entire population.

Blind Group Assignment

A method used in experiments where participants are randomly assigned to groups without knowing which group (e.g., experimental or control) they are in to reduce bias.

Random Group Assignment

A method used in experiments where participants are randomly assigned to different groups to ensure that each group has a similar composition at the start of the experiment.