Which of the following is NOT an assumption of ANOVA? Each group has approximate

Question

Which of the following is NOT an assumption of ANOVA?

Each group has approximately equal variance.

Observations are independent

The means of each group are aproximately equal

The data of each group follows a normal distribution

Suppose you are comparing the mean plant weight for plants treated with two different fertilizier treatments and a control group. There are then three groups (Control, Treatment 1, and treatment 2) You want to run an ANOVA on the data, what is your null hypothesis?

Suppose you are comparing the mean plant weight for plants treated with two different fertilizer treatments and a control group. There and then three groups (Control, Treatment 1, Treatment 2) You run an ANOVA and get a p-value of 0.16. What can you conclude?

Explanation / Answer

Solution:

The correct option is C

Explanation:

ANOVA is a statistical method that stands for analysis of variance. ... balanced (have the same number of participants in each group) or unbalanced (which means that the variance among the groups should be approximately equal.

#2 Question

Since the P value is 0.16 which is less than the significance value 0.05 , hence we reject the null hypothesis and conclude that there is difference between atleast two groups. " The result is statistically significant, so there is a difference in means between atleast one pair of the groups"

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