Please help me explain why these answers are correct! Thank you so much! 2) If a

Question

Please help me explain why these answers are correct! Thank you so much!

2) If a treatment effect exists: Variability between groups will tend to exceed variability within groups

Explain why this statement is correct:

3) Variability between groups is based on the variation among the scores of: Subjects treated differently

Explain why this statement is correct:

4) If the null hypothesis is false, variability between groups reflects: Both random error and the treatment effect

Explain why this statement is correct:

5) Regardless of whether the null hypothesis is true or false, variability within groups reflects: Only random error

Explain why this statement is correct:

Explanation / Answer

2) If a treatment effect exists: Variability between groups will tend to exceed variability within groups

Treatment effect exists then it should be natural that the difference comes between groups. Here the difference comes in terms of variability. Hence that is correct.

4) If the null hypothesis is false, variability between groups reflects: Both random error and the treatment effect

Null hypothesis is there is no difference. If that Ho is rejected then it simply implies there is significant between treatments.

5) Regardless of whether the null hypothesis is true or false, variability within groups reflects: Only random error
IF the Ho is true that means all treatments having same effects then also we can note there is differences in samples and there means this difference happens due to random errors.

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