. What does a t test measure? In what sense is a sample s variance a biased estimate of the variance of a population from which the sample is taken?
. What does a t test measure?
In what sense is a sample s variance a biased estimate of the variance of a population from which the sample is taken?
What does the term degrees of freedom mean?
Please provide an original example of when you would use a t test for a single sample (AKA one sample t test).
Response must be at least 200 words
2. What specific distribution is used as the comparison distribution when performing a t test for independent means?
What is the pooled estimate of the population variance and why do we use it?
What are the assumptions of the t test for independent means?
Please provide an original example of when you would use a t test for independent means.
Response must be at least 200 words
3. What is the theory underlying ANOVA?
In ANOVA, what does F = 1 mean, specifically?
What are the differences between two sample t test (AKA independent samples t test) and ANOVA hypothesis testing?
Please give an example of when you would use an ANOVA (doesn t matter which kind, for those of you who know there is more than one type of ANOVA).
Response must be at least 200 words
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