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The sums of squares were computed
The test statistic (F) is
An ANOVA with 2 factors (each one with 2 levels) was run with a sample of size 44, in order to explain the level of Understanding.
The Country of Origin (Portugal and Germany) was added as a third factor.
In this ANOVA (with the 3 factors) the Mean Sum of Squares of the Error is equal to 409 and the p-value for Country of Origin is 0.10.
Find out the Sum of Squares of the Country of Origin.
How would you describe H1 ?
An ANOVA with only one factor was run in order to find out if the level of Understanding is not the same for the 2 Genders (Male and Female).
This was done with a sample of size 17. The Sum of Squares of Gender was computed (83.2) and the p-value=0.659.
In order to have a p-value<0.05 for Gender, what would be a valid ratio between the Mean Sum of Squares for Gender and the Mean Sum of Squares for the Residuals ?
With this sample
what is your expectation for the p-value if you run a Normality test such that
Ho: Exam Grade is Normally distributed ?
As described initially (with the bar chart), 70% of the students, considered in the sample, prefer the blended learning course format:
Can we compute a Confidence Interval for the proportion of students that would prefer the face to face course format ?
The Lower Limit of a Confidence Interval for Exam Grade μ, using a 95% confidence level, is
Recall the previous test for Pleasure μ with a huge change Ho: μ=64 and H1: μ<64
Using the same sample and considering α=0.05, we
Let's focus on Pleasure and use the sample to test Ho: μ ≤ 45.
The Critical Value using α=0.05 is approx.
Can you compute a Margin of Error for Exam Grade μ ?